Current weather · Sep 26, 5:11 PM AKDT

57.0470, -135.3670

52°

Light rain likelyFeels like 52° · Humidity 88%NWS forecast for this hour; no recent station reportForecast by NWS Juneau, AK · grid 187,112
High
54°
Low
46°
Rain today
100%
Sunrise
6:55 AM
Sunset
6:49 PM

Hour by hour

NWS forecast grid

Scroll sideways for more hours. Pick an hour for every number.

Every hour as a table48 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Sat 5 PMLight rain likely52°52°48°88%62%0.01 inSSE16 mph21 mph88%—6 mi2,200 ft
Sat 6 PMLight rain likely52°52°49°90%62%0.01 inSSE16 mph21 mph88%—6 mi2,200 ft
Sat 7 PMLight rain likely51°51°47°85%61%0.01 inSE14 mph18 mph86%—6 mi1,800 ft
Sat 8 PMLight rain likely51°51°47°87%61%0.01 inSE14 mph18 mph86%—6 mi2,200 ft
Sat 9 PMLight rain likely52°52°48°87%61%0.01 inSE14 mph18 mph86%—6 mi1,800 ft
Sat 10 PMLight rain51°51°48°88%100%0.04 inSE14 mph18 mph100%—6 mi2,800 ft
Sat 11 PMLight rain51°51°48°88%100%0.04 inSE14 mph18 mph100%—6 mi2,200 ft
Sun 12 AMLight rain51°46°48°90%100%0.04 inSE14 mph18 mph100%—6 mi1,600 ft
Sun 1 AMLight rain51°45°49°93%92%0.04 inS17 mph23 mph97%—5 mi1,300 ft
Sun 2 AMLight rain51°51°49°93%92%0.04 inS17 mph23 mph97%—5 mi900 ft
Sun 3 AMLight rain50°44°48°94%92%0.04 inS17 mph23 mph97%—5 mi1,600 ft
Sun 4 AMLight rain51°51°50°94%92%0.04 inS17 mph24 mph97%—5 mi1,300 ft
Sun 5 AMLight rain52°52°49°92%92%0.04 inS17 mph24 mph97%—5 mi1,300 ft
Sun 6 AMLight rain52°52°49°92%92%0.04 inS17 mph24 mph97%—5 mi1,600 ft
Sun 7 AMLight rain52°52°50°92%81%0.04 inS17 mph23 mph96%—4 mi1,300 ft
Sun 8 AMLight rain53°53°50°91%81%0.04 inS17 mph23 mph96%—4 mi1,300 ft
Sun 9 AMLight rain53°53°50°91%81%0.04 inS17 mph23 mph96%—4 mi900 ft
Sun 10 AMHeavy rain53°53°50°88%100%0.09 inS17 mph23 mph100%—4 mi1,300 ft
Sun 11 AMHeavy rain54°54°50°87%100%0.09 inS17 mph23 mph100%——
Sun 12 PMHeavy rain54°54°50°89%100%0.09 inS17 mph23 mph100%——
Sun 1 PMHeavy rain54°54°51°90%99%0.09 inSSE21 mph29 mph100%——
Sun 2 PMHeavy rain54°54°50°89%99%0.09 inSSE21 mph29 mph100%——
Sun 3 PMHeavy rain54°54°50°89%99%0.09 inSSE21 mph29 mph100%——
Sun 4 PMChance of light rain54°54°50°89%49%0.01 inS23 mph30 mph94%——
Sun 5 PMChance of light rain53°53°50°90%49%0.01 inS23 mph30 mph94%——
Sun 6 PMChance of light rain52°52°50°91%49%0.01 inS23 mph30 mph94%——
Sun 7 PMChance of light rain52°52°48°88%25%0.01 inSSW18 mph23 mph89%——
Sun 8 PMChance of light rain51°51°48°88%25%0.01 inSSW18 mph23 mph89%——
Sun 9 PMChance of light rain51°51°48°87%25%0.01 inSSW18 mph23 mph89%——
Sun 10 PMChance of light rain50°45°47°87%38%0.01 inSW14 mph17 mph92%——
Sun 11 PMChance of light rain50°45°46°85%38%0.01 inSW14 mph17 mph92%——
Mon 12 AMChance of light rain50°44°46°87%38%0.01 inSW14 mph17 mph92%——
Mon 1 AMLight rain likely49°45°46°89%61%0.01 inSSW12 mph15 mph85%——
Mon 2 AMLight rain likely49°44°46°89%61%0.01 inSSW12 mph15 mph85%——
Mon 3 AMLight rain likely48°43°45°90%61%0.01 inSSW12 mph15 mph85%——
Mon 4 AMLight rain48°43°45°90%92%0.03 inS10 mph14 mph95%——
Mon 5 AMLight rain48°44°44°86%92%0.03 inS10 mph14 mph95%——
Mon 6 AMLight rain48°43°44°86%92%0.03 inS10 mph14 mph95%——
Mon 7 AMLight rain48°44°44°84%92%0.03 inS10 mph14 mph95%——
Mon 8 AMLight rain50°45°44°82%92%0.03 inS10 mph14 mph95%——
Mon 9 AMLight rain50°46°45°81%92%0.03 inS10 mph14 mph95%——
Mon 10 AMLight rain51°51°45°78%95%0.03 inS12 mph15 mph97%——
Mon 11 AMLight rain52°52°45°76%95%0.03 inS12 mph15 mph97%——
Mon 12 PMLight rain53°53°46°77%95%0.03 inS12 mph15 mph97%——
Mon 1 PMLight rain53°53°47°80%95%0.03 inS12 mph16 mph97%——
Mon 2 PMLight rain53°53°47°80%95%0.03 inS12 mph16 mph97%——
Mon 3 PMLight rain53°53°47°79%95%0.03 inS12 mph16 mph97%——
Mon 4 PMLight rain52°53°46°78%90%0.03 inS12 mph16 mph94%——

The next 16 days

NWS grid published Sep 26, 3:15 PM AKDT to day 8, the mean of GFS, GEFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2654°46°Light Rain Likely100%0.26 inwind 24 mph · gusts 32 mph
  2. SunSep 2755°47°Heavy Rain100%1.02 inwind 23 mph · gusts 30 mph
  3. MonSep 2854°47°Light Rain95%0.67 inwind 14 mph
  4. TueSep 2954°45°Rain Showers100%0.73 inwind 13 mph
  5. WedSep 3054°45°Rain Showers Likely75%0.45 inwind 8 mph
  6. ThuOct 154°45°Rain Showers Likely70%0.50 inwind 8 mph
  7. FriOct 254°47°Rain Showers Likely74%0.38 inwind 18 mph
  8. SatOct 355°47°80%wind 17 mph
  9. SunOct 4~50°47°Model mean0.90 in
  10. MonOct 5~50°45°Model mean0.75 in
  11. TueOct 6~53°47°Model mean1.33 in
  12. WedOct 7~53°49°Model mean0.58 in
  13. ThuOct 8~49°46°Model mean0.50 in
  14. FriOct 9~48°44°Model mean0.54 in
  15. SatOct 10~50°44°Model mean0.33 in
  16. SunOct 11~45°43°Model mean1.34 in

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like52°
  • WindSSE 16 mphgusts 21 mph
  • Radar over this pointno reading
  • Humidity88%
  • Dew point48°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility6 mi
  • Sunrise and sunsetSunrise · Sunset
  • Moonrise6:26 PMMoonset 7:06 AM
  • Moon phaseFull moon100% lit

The models, side by side

GFS Sep 26, 10:00 AM AKDT · GEFS Sep 26, 10:00 AM AKDT · ECMWF Sep 26, 4:00 AM AKDT · ECMWF AI Sep 26, 4:00 AM AKDT

Each line is one model’s own forecast at its own grid cell: three kilometers for HRRR, a quarter of a degree for the global models, which can sit a few hundred meters above or below the town. Where they agree the forecast is settled; where they part is where it is not.

32°46°59°SunMonTueWedThuFriSat

DayNWS gridGFSGEFSECMWFECMWF AI
Today Sep 2654° 46°0.26 in~45° 44°0.34 in~45° 43°0.41 in49° 46°0.85 in~49° 43°0.63 in
Sun Sep 2755° 47°1.02 in48° 45°2.44 in48° 45°1.63 in50° 47°1.73 in~51° 49°1.88 in
Mon Sep 2854° 47°0.67 in50° 43°0.02 in49° 43°0.25 in48° 44°0.83 in~49° 46°0.48 in
Tue Sep 2954° 45°0.73 in48° 42°0.06 in48° 44°0.33 in49° 42°0.17 in~48° 45°0.48 in
Wed Sep 3054° 45°0.45 in52° 43°0.25 in49° 43°0.17 in49° 42°0.30 in~49° 45°0.30 in
Thu Oct 154° 45°0.50 in48° 41°0.11 in47° 42°0.23 in48° 42°0.31 in~46° 43°0.46 in
Fri Oct 254° 47°0.38 in49° 41°0.31 in47° 42°0.32 in~49° 45°0.38 in~48° 42°0.16 in
Sat Oct 355° 47°47° 42°1.94 in46° 43°1.43 in~53° 45°1.76 in~51° 46°2.21 in
Sun Oct 4—48° 41°0.04 in48° 46°0.98 in~53° 52°1.87 in~51° 49°0.74 in
Mon Oct 5—49° 39°0.41 in49° 45°0.59 in~54° 49°1.36 in~51° 48°0.66 in
Tue Oct 6—56° 45°3.28 in~47° 46°0.35 in~56° 49°0.36 in~51° 48°1.32 in
Wed Oct 7—~57° 47°0.60 in—~54° 52°0.59 in~50° 47°0.57 in
Thu Oct 8—~49° 46°0.37 in—~49° 45°0.94 in~50° 46°0.20 in
Fri Oct 9—~46° 42°0.19 in—~48° 42°0.06 in~51° 49°1.38 in
Sat Oct 10—~49° 41°0.04 in—~49° 41°0.13 in~52° 50°0.81 in
Sun Oct 11—~45° 43°1.34 in—~48° 48°0.29 in~49° 49°0.11 in

A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.

ECMWF ensemble meteogram

ECMWF ensemble meteogram for this place: box plots of cloud cover, precipitation, wind speed and temperature from the 51 ensemble members for ten days.
Rendered by ECMWF from its 51-member ensemble, in metric units: each box spans the middle half of the members, the whiskers the rest, the line the control run. A forecast, not an observation. © ECMWF, CC BY 4.0.

The next 90 days

NOAA GHCN normals and records at Sitka/Japonski Airport (Asos) (PASI) · Climate Prediction Center outlooks

No forecast has skill day by day past about two weeks, and this page does not print one. Where the models stop, the calendar takes over: the 1991 to 2020 normal for each date, the record high and low ever set on it, and where the Climate Prediction Center leans warm, cool, wet or dry over the coming weeks, the month and the season. A site that shows a high for a date three months out is showing you this normal with a wobble.

The forecast reaches Sun Oct 11, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

0°20°40°60°80°TodayOct 1Nov 1Dec 1

Forecast high and lowNormal high and lowRecord high and low

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Sep 2656° / 45°75° (1944)31° (1956)no outlookno outlook
Oct 353° / 44°70° (2022)30° (1958)no outlookno outlook
Oct 1051° / 43°64° (1944)27° (1992)no outlookno outlook
Oct 1750° / 41°63° (2022)29° (2004)no outlookno outlook
Oct 2449° / 39°65° (1944)20° (1984)no outlookno outlook
Oct 3147° / 38°65° (1970)19° (1973)no outlookno outlook
Nov 746° / 37°60° (1976)18° (1985)no outlookno outlook
Nov 1443° / 34°58° (1944)13° (1963)no outlookno outlook
Nov 2144° / 36°62° (2002)2° (1985)no outlookno outlook
Nov 2841° / 33°59° (2002)1° (1970)no outlookno outlook
Dec 543° / 36°58° (2017)6° (1977)no outlookno outlook
Dec 1241° / 33°65° (1944)2° (1964)no outlookno outlook
Dec 1943° / 34°59° (1969)10° (1955)no outlookno outlook

Health and activities

Rules of thumb over the next 24 hours of forecast, the warnings in force, the station’s report, air quality and pollen

None of these is a measurement. Each is a rating of the forecast ahead, and of what is happening at the point right now, against what the activity or the ailment is known to mind, and each names the figure that decided it. An ailment or a pest is rated as a risk, low to extreme; an activity, a chore or a journey as a condition, poor to ideal.

Each rating says which span it is for: the rest of today’s daylight, tonight, or the next 24 hours.

Health

  • Arthritisnext 24 hModeratehumid
  • Sinus pressurenext 24 hModeratehumid
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayFairchance of rain
  • HikingtodayGoodchance of rain
  • BikingtodayGoodchance of rain
  • GolftodayGoodchance of rain
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayVery goodwind
  • Beach and pooltodayPoorcool
  • CampingtonightFairrain overnight
  • StargazingtonightPoorovercast

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayFairchance of rain
  • GardeningtodayGoodchance of rain
  • Outdoor entertainingtodayPoorchance of rain
  • Drying laundry outsidetodayPoorchance of rain
  • Painting and outdoor projectstodayPoorchance of rain
  • FrosttonightLowmild

Pests

  • MosquitoestodayHighwarm
  • TickstodayVery highwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayModeratehumid

Stargazing

Worked out from the NWS hourly forecast and the sun and moon

Tonight has no dark, clear hour without a bright moon in this forecast. Rated poor.

Night ofRatingDarkClear hoursClear and moonlessMoon litTransparency (est.)DewStrongest wind
SaturdayPoor8:59 PM to 4:47 AM0 of 8None100%7 h17 mph
SundayPoor8:56 PM to 4:49 AM0 of 8None97%6 h18 mph
MondayPoor8:53 PM to 4:52 AM0 of 8None93%3 h13 mph
TuesdayPoor8:50 PM to 4:54 AM0 of 8None86%4 h8 mph
WednesdayPoor8:47 PM to 4:56 AM0 of 8None78%2 h8 mph
ThursdayPoor8:44 PM to 4:59 AM0 of 8None69%8 mph
FridayPoor8:41 PM to 5:01 AM0 of 8None59%1 h18 mph

Dark is the sun 18 degrees below the horizon; where it never gets that low, 12 degrees, marked nautical. Clear is sky cover of 20% or less. A bright moon is one above the horizon with a quarter or more of its disc lit. Transparency in the table is estimated from surface humidity (70% and 85% mark fair and poor) and visibility, since the forecast carries no haze or high cloud moisture. Seeing and transparency by hour, where shown, are Environment and Climate Change Canada’s astronomy forecast (regional model; seeing from cloud, wind shear, turbulence near the ground and the surface temperature trend; transparency from the moisture through the whole air column), under the Open Government Licence - Canada. Dew is the air within 2 °C of its dew point. Excellent is four or more clear moonless hours with good transparency; good is three; fair is one, or two clear hours.

Golden hour and blue hour

Computed from the sun and moon positions
DayBlue hour, morningGolden hour, morningGolden hour, eveningBlue hour, evening
Sat6:17 AM to 6:32 AM6:32 AM to 7:46 AM5:58 PM to 7:12 PM7:12 PM to 7:27 PM
Sun6:19 AM to 6:34 AM6:34 AM to 7:48 AM5:55 PM to 7:09 PM7:09 PM to 7:24 PM
Mon6:21 AM to 6:36 AM6:36 AM to 7:50 AM5:53 PM to 7:07 PM7:07 PM to 7:21 PM
Tue6:23 AM to 6:38 AM6:38 AM to 7:53 AM5:50 PM to 7:04 PM7:04 PM to 7:19 PM
Wed6:26 AM to 6:40 AM6:40 AM to 7:55 AM5:47 PM to 7:01 PM7:01 PM to 7:16 PM
Thu6:28 AM to 6:42 AM6:42 AM to 7:57 AM5:44 PM to 6:58 PM6:58 PM to 7:13 PM
Fri6:30 AM to 6:44 AM6:44 AM to 7:59 AM5:41 PM to 6:56 PM6:56 PM to 7:10 PM
NESWSRSSMRMS
  • SR Sunrise 6:55 AM, 91° E
  • SS Sunset 6:49 PM, 268° W
  • MR Moonrise 6:26 PM, 78° ENE
  • MS Moonset 7:06 AM, 276° W
  • Full moon, 100% lit

Golden hour is the sun between 6 degrees above the horizon and 4 degrees below it; blue hour is the sun between 4 and 6 degrees below. These are the definitions timeanddate.com and PhotoPills use. Directions are degrees clockwise from true north, where the sun’s upper edge and the moon’s center cross a flat horizon; hills and buildings change both. None means the sun does not reach that height on the day; all day means it stays inside the band.

Drone flying

NWS hourly forecast, SWPC Kp, FAA TFRs and 14 CFR Part 107

This hour: no-fly (gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit). No stretch of two good hours in the next three days.

Today: civil twilight 6:17 AM to sunrise 6:55 AM, and sunset 6:49 PM to 7:27 PM (the Air Almanac’s, as Part 107 uses in Alaska). Anti-collision lighting is required in those minutes and at night.

Sat6 PM
Sun12 AM6 AM12 PM6 PM
Mon12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Sat 5 PMNo-fly16232862%6 mi400 ft52°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit
Sat 6 PMNo-fly16232862%6 mi400 ft52°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, civil twilight: lighting required (107.29)
Sat 7 PMNo-fly14202561%6 mi400 ft51°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 8 PMNo-fly14202561%6 mi400 ft51°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 9 PMNo-fly14202561%6 mi400 ft52°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 10 PMNo-fly142025100%6 mi400 ft51°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sat 11 PMNo-fly142025100%6 mi400 ft51°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sun 12 AMNo-fly142025100%6 mi400 ft51°gusts near or over your limit, chance of rain, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sun 1 AMNo-fly17253192%4.6 mi400 ft51°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, night: lighting and night training required (107.29)
Sun 2 AMNo-fly17253192%4.6 mi400 ft51°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, night: lighting and night training required (107.29)
Sun 3 AMNo-fly17253192%4.6 mi400 ft50°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, night: lighting and night training required (107.29)
Sun 4 AMNo-fly17253292%5 mi400 ft51°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, night: lighting and night training required (107.29)
Sun 5 AMNo-fly17253292%5 mi400 ft52°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, night: lighting and night training required (107.29)
Sun 6 AMNo-fly17253292%5 mi400 ft52°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, night: lighting and night training required (107.29)
Sun 7 AMNo-fly17253181%3.7 mi400 ft52°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain
Sun 8 AMNo-fly17253181%3.7 mi400 ft53°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain
Sun 9 AMNo-fly17253181%3.7 mi400 ft53°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain
Sun 10 AMNo-fly172531100%3.7 mi400 ft53°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain
Sun 11 AMNo-fly172531100%54°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain
Sun 12 PMNo-fly172531100%54°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain
Sun 1 PMNo-fly21303899%54°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, ground wind near or over your limit
Sun 2 PMNo-fly21303899%54°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, ground wind near or over your limit
Sun 3 PMNo-fly21303899%54°wind at 400 ft near or over your limit, gusts near or over your limit, chance of rain, ground wind near or over your limit
Sun 4 PMNo-fly23334049%54°wind at 400 ft near or over your limit, gusts near or over your limit, ground wind near or over your limit, chance of rain

Flight restrictions nearby

Reading the FAA’s temporary flight restrictions.

Flight restrictions on the map. TFRs are not the whole picture: controlled airspace around airports needs LAANC authorization. Check the FAA’s B4UFLY.

Wind at 400 ft is estimated from the 10 m forecast by the power law, with exponents for each Pasquill stability class (Irwin 1979, rural, as in EPA dispersion models; the class from wind, sun height and cloud, after Turner 1970); gusts keep the ground gust’s margin. Caution from three quarters of your limit; the default 24 mph is the wind resistance printed for common sub-250 g drones. 14 CFR 107.51: “The minimum flight visibility, as observed from the location of the control station must be no less than 3 statute miles” and at least “500 feet below the cloud”. 14 CFR 107.29: “No person may operate a small unmanned aircraft system during periods of civil twilight unless the small unmanned aircraft has lighted anti-collision lighting visible for at least 3 statute miles”; civil twilight is the 30 minutes before sunrise and after sunset, in Alaska the Air Almanac’s. Kp: SWPC’s scales say satellite navigation problems may occur at G3 (Kp 7) and navigation is “degraded for hours” at G4 (Kp 8); Kp 5 is the typical app warning. Typical limits, not rules: rain chance 30% caution and 60% no-fly, thunder 10% and 20%, below 0 °C caution and −10 °C no-fly, over 40 °C caution. Your drone’s manual and the airspace come first.

Spraying and field work

Worked out from the NWS hourly forecast

Hours fit for spraying, and the days dry enough for fieldwork and hay, read from this forecast’s wind, gusts, humidity, temperature and rain.

Spraying windows

No stretch of two hours or more meets the rules with 4 rain-free hours after it in this forecast.

Sat6 PM
Sun12 AM6 AM12 PM6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
SaturdayWet95%0.26 in80%24 mph
SundayWet100%1.02 in87%23 mph
MondayWet95%0.67 in76%13 mph
TuesdayWet100%0.73 in79%10 mph
WednesdayWet73%0.45 in75%8 mph
ThursdayWet70%0.50 in75%8 mph
FridayWet68%0.38 in75%18 mph
SaturdayShowers possible80%0.00 in82%17 mph

Spraying: sustained wind 3 to 10 mph, the range US extension services and most labels give; gusts no more than 15 mph (this page’s limit); delta T (air minus wet-bulb temperature) 2 to 8 °C preferred and 8 to 10 °C marginal, from GRDC guidance, with the wet bulb by Stull’s formula; no hour at a 30% chance of rain or 0.25 mm forecast during the rain-free time. Follow the product label, which overrides all of this. Field days: dry is no daytime hour at a 30% chance and under 1 mm all day, wet is 6 mm (0.25 in) or more; soil moisture is not in the forecast, so ground still wet from earlier rain is not accounted for. Hay drying marks a dry day with humidity down to 50% and a breeze of 5 mph or more.

Solunar times

Computed from the moon’s position

The best-rated day this week is Saturday, rated best.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Sat Best11:33 PM to 1:33 AM11:56 AM to 1:56 PM6:36 AM to 7:36 AM5:56 PM to 6:56 PM 100%6:55 AM, 6:49 PM
Sun Best12:19 AM to 2:19 AM12:43 PM to 2:43 PM8:07 AM to 9:07 AM6:02 PM to 7:02 PM 98%6:57 AM, 6:46 PM
Mon Good1:08 AM to 3:08 AM1:33 PM to 3:33 PM9:41 AM to 10:41 AM6:10 PM to 7:10 PM 95%6:59 AM, 6:43 PM
Tue Good2:00 AM to 4:00 AM2:28 PM to 4:28 PM11:20 AM to 12:20 PM6:23 PM to 7:23 PM 89%7:02 AM, 6:41 PM
Wed Fair2:57 AM to 4:57 AM3:27 PM to 5:27 PM12:59 PM to 1:59 PM6:46 PM to 7:46 PM 81%7:04 AM, 6:38 PM
Thu Fair3:57 AM to 5:57 AM4:29 PM to 6:29 PM2:27 PM to 3:27 PM7:27 PM to 8:27 PM 72%7:06 AM, 6:35 PM
Fri Fair5:00 AM to 7:00 AM5:31 PM to 7:31 PM3:30 PM to 4:30 PM8:36 PM to 9:36 PM 62%7:08 AM, 6:32 PM

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index

Major periods are two hours centered on the moon’s passage overhead and underfoot; minor periods are one hour centered on moonrise and moonset: the conventional durations of John Alden Knight’s solunar tables (1936). The rating is this site’s: one point to start, two more within a day and a half of a new or full moon (one more within three and a half days), and one more when a period falls within an hour of sunrise or sunset. The theory has mixed support in fisheries research; the times are exact astronomy.

In words

NWS forecast periods, as issued
  1. This Afternoon54° · 62% · SE 15 mph

    Rain likely. Cloudy, with a high near 54. Southeast wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

  2. Tonight49° · 100% · S 15 mph

    Rain. Cloudy, with a low around 49. South wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

  3. Sunday55° · 100% · S 15–25 mph

    Rain. Cloudy, with a high near 55. South wind 15 to 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

  4. Sunday Night47° · 92% · SW 10–25 mph

    Rain. Cloudy, with a low around 47. Southwest wind 10 to 25 mph. Chance of precipitation is 90%.

  5. Monday54° · 95% · S 10 mph

    Rain. Cloudy, with a high near 54. South wind around 10 mph. Chance of precipitation is 100%.

  6. Monday Night47° · 91% · S 10–15 mph

    Rain before 4am, then rain showers. Cloudy, with a low around 47. Chance of precipitation is 90%.

  7. Tuesday54° · 100% · S 10 mph

    Rain showers. Cloudy, with a high near 54.

  8. Tuesday Night45° · 92% · SE 5–10 mph

    Rain showers. Cloudy, with a low around 45.

  9. Wednesday54° · 73% · SE 5–10 mph

    Rain showers likely. Mostly cloudy, with a high near 54.

  10. Wednesday Night45° · 69% · SE 5–10 mph

    Rain showers likely. Mostly cloudy, with a low around 45.

  11. Thursday54° · 70% · S 5–10 mph

    Rain showers likely. Mostly cloudy, with a high near 54.

  12. Thursday Night45° · 62% · S 10 mph

    Rain showers likely. Mostly cloudy, with a low around 45.

  13. Friday54° · 68% · SE 10–20 mph

    Rain showers likely. Cloudy, with a high near 54.

  14. Friday Night47° · 80% · SE 15–20 mph

    Rain showers. Cloudy, with a low around 47.

The forecaster’s discussion

NWS Juneau, AK · issued Sep 26, 4:09 PM AKDT

Written by the forecaster on duty for their own colleagues and for anyone who wants to know why the forecast says what it says. It is not edited for the public, so it uses the office’s shorthand; it is also the most honest thing any weather service publishes.

Synopsis

Key Messages:

Rain continues this evening into tomorrow with the heaviest rainfall expected tomorrow afternoon. Accumulations of 1-3 inches win 24 hours possible.

Winds likely to remain gusty at times through early next week with multiple weather systems.

Temperatures mainly seasonable with highs averaging in the 50s.

Short Term

The first of multiple fronts this weekend is working its way through the panhandle this afternoon. Satellite images indicate that we will enter the post-frontal environment in the next couple of hours, which will allow for some cloud breaks and a brief reprieve from rain this evening. As the next front approaches tonight and into Sunday, rain and overcast skies will return in rapid fashion. The Sunday front will be stronger than its predecessor, bringing some stronger winds to the area (see marine section for more detailed wind discussion). The heavier rain rates will occur on Sunday as well, but will remain light enough that hydro/flooding concerns are limited. Ensembles point to only patchy occurrences of 2 yr ARI chances over 30%. Weekend rain totals will be in the 2-4" range.

The main low will drive into the Gulf starting this week, leading to continued unsettled weather. However, it will be losing strength, entering the Gulf as a ~990mb low, rising to 996mb by Tuesday. As such, QPF from this system will be less than the fronts this weekend.

Long Term

/Monday through Thursday/... An active weather pattern will persist across SEAK through next week. The big player that will send the disturbances into the Gulf and through SEAK will be the remnants of Typhoon Dujuan and associated upper- level low/trough that will slowly swing through southern interior of AK and into the Gulf through early next week. Additionally, in between each front, cooler, moist onshore flow will keep mostly cloudy skies and showers. Sunday night into Monday, a low/front will will pivot around the periphery of the parent upper-low and lift northeast into the Gulf and strengthen as it approaches the panhandle, with another surge of gusty winds. This system will tap into a deep feed of Pacific moisture, with moderate to heavy rain expected. In addition, cooler temperatures aloft associated with the upper trough will result in modest instability, bringing a potential for isolated thunderstorms, primarily along the Gulf Coast and southern panhandle. For Tuesday into Wednesday, rain chances and precip rates are favored to be on a downward trend as the primary Gulf low weakens and the feed of deeper moisture shifts southeast of the panhandle towards BC. Continuous showers are still expected through Wednesday afternoon before an upper level trough slides down and replaces the dying low over the Eastern Gulf. This new disturbance will help steer more moisture into the panhandle for Thursday and into the extended range. The rainy and cloudy pattern will keep temperatures seasonably cool with highs generally in the low to mid 50s.

Aviation

/through 0Z Mon/... MVFR is the prevailing flight category across the panhandle this afternoon as the front is moving through the area. A select few sites are seeing VFR CIGs, but visibilities have been dragging then down to MVFR as rain fluctuates in intensity. Satellite imagery is indicating that the front is moving out of the area and coastal locations could start to see a brief respite by 2Z. This brief lull between fronts is expected over the panhandle by as early as 2Z and last as late as 11Z, before a stronger, more intense front moves through. This front is expected to bring heavier rain than the previous, so conditions are anticipated to be worse than the previous period (MVFR to IFR expected by Sunday morning). TAF sites in the southern panhandle are also likely to see more deteriorated conditions than the northern panhandle as well.

Pireps have been coming in from PAKT with reports of wind shear, which is forecasted through 3Z. Even with the wind shear dropping off, conditions are expected to continue to be gusty and unsettled, especially in front of the next front. PAGY is expected to see wind shear from 11-15Z with Juneau seeing marginal opportunity for wind shear from 9-14Z around 2,000ft.

Marine

Inside Waters: As the front continues moving across the panhandle into tonight, followed closely by a secondary front, the inner channels will continue see SE-ly moderate to fresh breezes. Some areas may see winds increase to strong breezes to near gales through the evening into tonight, with gusts of 30 to 40 kt possible at times for parts of Clarence Strait and for around Young Bay. Winds will remain around 20 to 25 kts through the overnight period into tomorrow as another front pushes in through the day Sunday, with the highest winds expected across the N-S oriented channels. Areas near Cape Decision and Dixon Entrance may see 30 kt winds and elevated gusts Sunday evening into Sunday night with this front, while winds across the remainder of the panhandle will gradually diminish from W to E through the end of the day Sunday. Seas of 3 to 5 ft will last into Sunday.

Outside Waters: Multiple fronts will move across the Gulf into the panhandle today through early this week, keeping winds predominantly S to SE at 15 to 30 kts as these fronts pass. A stronger front will push into the eastern Gulf from the north Pacific on Sunday, bringing some 30 kt winds with gusts to 45 kt offshore of Haida Gwaii and just west of PoW. Winds will gradually diminish over the northern Gulf during the day Sunday from the N coast down to the waters just west of Baranof Island, but lingering SW-ly flow of 15 to 25 kt will continue across the eastern and central Gulf as the low remains sitting in the northern Gulf. Seas of 8 to 12 ft last through Sunday, before falling to 6 to 8 ft over the N Gulf Monday.

AJK Watches / Warnings / Advisories

PUBLIC...None. MARINE...Gale Warning for PKZ652. Small Craft Advisory for PKZ012-013-022-031-033>036-053-641>644- 651-661>664-671-672.

The outlooks beyond

SPC, WPC, CPC and the Drought Monitor, read at this point

The national centers each publish a judgment the local grid does not carry. Read here at this exact coordinate.

Severe weather

  1. Day 1 · Sat Sep 26No risk area
  2. Day 2 · Sun Sep 27No risk area
  3. Day 3 · Mon Sep 28No risk area
  4. Day 4 · Tue Sep 29No risk area
  5. Day 5 · Wed Sep 30No risk area
  6. Day 6 · Thu Oct 1No risk area
  7. Day 7 · Fri Oct 2No risk area
  8. Day 8 · Sat Oct 3No risk area

Rainfall

  1. Day 1 · Sat Sep 26Under 0.01 in
  2. Day 2 · Sun Sep 27Under 0.01 in
  3. Day 3 · Mon Sep 28Under 0.01 in
  4. Day 4-5 · Sep 29–Sep 30Under 0.01 in
  5. Day 6-7 · Oct 1–Oct 2Under 0.01 in

The rainfall forecast on the map, days 1 to 7

Six to fourteen days

  1. Days 6–10 · TemperatureEqual chances
  2. Days 6–10 · PrecipitationEqual chances
  3. Days 8–14 · TemperatureEqual chances
  4. Days 8–14 · PrecipitationEqual chances

Frost and climate

NOAA 1991-2020 normals, Sitka Airport

The last spring freeze (32°F) usually comes around April 12 and the first fall freeze around November 1: a growing season of about 201 days.

One fall in ten brings a freeze by October 13; one spring in ten still has one after April 30.

Climate of 57.05, -135.37: normals, records and every month

Everything else on the grid

NWS forecast grid · 29 elements

The forecast office edits about sixty fields for every cell of its grid. The common ones are above; these are the rest, as the daily extreme, for anyone who needs the mixing height, the fire danger or the swell.

ElementSatSunMonTueWedThuFriSat
Wind chill min44°43°42°42°42°41°42°
Lightning activity level max11111111
Snow level min4,900 ft5,100 ft4,100 ft4,100 ft4,000 ft3,900 ft3,900 ft4,900 ft
Cloud ceiling min1,800 ft900 ft
Visibility min5 mi4 mi
Mixing height max1,000 ft1,500 ft1,900 ft1,800 ft1,900 ft2,000 ft2,800 ft2,400 ft
Transport wind max22 mph22 mph16 mph13 mph9 mph9 mph18 mph16 mph
Twenty-foot wind max13 mph20 mph15 mph12 mph7 mph7 mph17 mph16 mph
Wave height max4.0 ft5.0 ft4.0 ft4.0 ft4.0 ft3.0 ft1.0 ft1.0 ft
Wave period max10 s11 s10 s10 s10 s9 s
Primary swell max1.0 ft2.0 ft2.0 ft1.0 ft1.0 ft1.0 ft0.0 ft0.0 ft

Against the record

NOAA GHCN · Sitka/Japonski Airport (Asos) (PASI) · 0.2 mi away

Each forecast day against the same calendar date at the nearest long-record station: the 1991 to 2020 normal, and the record high and low with the year they were set.

DayForecastNormalRecord highRecord low
Sat Sep 2654° / 46°56° / 48°67° (1944)31° (1956)
Sun Sep 2755° / 47°56° / 47°65° (1995)33° (1983)
Mon Sep 2854° / 47°56° / 46°75° (1944)35° (1961)
Tue Sep 2954° / 45°56° / 45°74° (2003)35° (2009)
Wed Sep 3054° / 45°55° / 45°70° (2020)33° (1996)
Thu Oct 154° / 45°55° / 44°66° (2018)32° (1996)
Fri Oct 254° / 47°54° / 44°66° (1944)34° (1957)
Sat Oct 355° / 47°54° / 44°62° (1988)32° (1957)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sat6:17 AM6:55 AM6:49 PM7:27 PM11 h 54 min Full moon · 100% lit
Sun6:19 AM6:57 AM6:46 PM7:24 PM11 h 49 min Waning gibbous · 98% lit
Mon6:21 AM6:59 AM6:43 PM7:21 PM11 h 44 min Waning gibbous · 95% lit
Tue6:23 AM7:02 AM6:41 PM7:19 PM11 h 39 min Waning gibbous · 89% lit
Wed6:26 AM7:04 AM6:38 PM7:16 PM11 h 34 min Waning gibbous · 81% lit
Thu6:28 AM7:06 AM6:35 PM7:13 PM11 h 29 min Waning gibbous · 72% lit
Fri6:30 AM7:08 AM6:32 PM7:10 PM11 h 24 min Waning gibbous · 62% lit
Sat6:32 AM7:10 AM6:30 PM7:08 PM11 h 20 min Last quarter · 52% lit

Forecast from the National Weather Service forecast grid at api.weather.gov, updated by the local office through the day; the written periods and hourly digest are the NWS’s own. Outlooks from the Storm Prediction Center, the Weather Prediction Center and the Climate Prediction Center via NOAA’s map services. Records and normals from NOAA’s Global Historical Climatology Network. Sun and moon computed here. Place names from GeoNames (CC BY 4.0).

What is here

Seven days
The high, the low, the chance and amount of rain and snow, the wind and the forecaster’s words for each day and night, from the National Weather Service grid for the exact cell your town sits in.
Hour by hour
Temperature, what it feels like, dew point, humidity, chance and amount of precipitation, wind and gusts, sky cover, the chance of thunder, pressure, visibility and ceiling, as a chart and as a table, with nights shaded.
Everything else on the grid
The office edits about sixty fields for every cell. The ones the mainstream forecast pages leave out are here as a daily table: HeatRisk, wet bulb globe temperature, lightning activity, mixing height, transport wind, the fire weather indices, and at the coast the waves and swell.
The discussion
The Area Forecast Discussion the forecaster wrote to explain the forecast, in their own words, with the specialist annexes folded away. Also the office’s hazardous weather outlook.
Beyond the week
The Storm Prediction Center’s severe weather category for each of the next eight days, the Weather Prediction Center’s rainfall forecast to day seven and its winter storm severity, and the Climate Prediction Center’s odds for days six to fourteen, all read at your coordinate.
Against the record
Each forecast day beside the same date at the nearest long-record station: the thirty-year normal and the record high and low with their years, so a forecast high that would break a record says so.
The next 90 days
The forecast as far as the grid, the National Blend and the global models reach, and the calendar after that: the normal and the record for every date, with the Climate Prediction Center’s lean for the weeks, the month and the season drawn over them. No made-up highs for a date three months out.

Common questions

Where does this forecast come from?

From the National Weather Service forecast grid published at api.weather.gov, the same grid the local forecast office edits through the day and the source of every forecast on weather.gov. The written periods, the hourly digest and the forecaster’s discussion are the NWS’s own products, shown as issued. Nothing here is a blend a website made.

How far ahead does it go?

The grid runs seven days ahead, hour by hour for the first days and in three to six hour steps after that. The National Blend of Models carries the days to eleven and the global models to sixteen. Beyond that the page carries the national centers’ outlooks, severe weather to day eight, rainfall to day seven, and the Climate Prediction Center’s odds for the coming weeks, month and season, over a ninety-day calendar of the normal and the record for each date. No forecast has skill day by day past about two weeks, and this page does not print one.

Why is this different from the app on my phone?

Most forecast apps show a blend of models chosen by the company that makes the app. This page shows the forecast the local National Weather Service office issues, edited by the forecasters who will also issue the warnings, and it shows all of it rather than the six numbers that fit on a phone. The discussion explains the reasoning, which no app carries.

What is a place’s address here?

Every town has its own page, such as /forecast/us/oklahoma/oklahoma-city/, and every day at a town has one too. A ZIP code typed into the search goes to the town it belongs to. Any coordinate at all can be looked up, and the page names the nearest town.

What the weather actually was · Open the live radar · Where the data comes from