Current weather · Sep 27, 6:05 PM AKDT

58.3020, -134.4200

49°

Moderate rain showersFeels like 46° · Humidity 97%NWS forecast for this hour; no recent station reportForecast by NWS Juneau, AK · grid 194,163
High
50°
Low
46°
Rain today
100%
Sunrise
6:54 AM
Sunset
6:42 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
Sun 6 PMModerate rain showers49°46°48°97%76%0.05 inSE6 mph16 mph95%—2.4 mi800 ft
Sun 7 PMChance of light rain showers49°49°48°96%37%0.01 inSE1 mph10 mph90%—3 mi1,300 ft
Sun 8 PMChance of light rain showers48°48°48°99%37%0.01 inSE1 mph10 mph90%—3 mi1,500 ft
Sun 9 PMChance of light rain showers48°48°48°100%37%0.01 inSE1 mph10 mph90%—3 mi1,800 ft
Sun 10 PMChance of light rain showers48°48°48°100%30%0.01 inSE2 mph8 mph85%—5 mi1,600 ft
Sun 11 PMChance of light rain showers47°47°47°100%30%0.01 inSE2 mph8 mph85%—5 mi1,600 ft
Mon 12 AMChance of light rain showers47°47°47°100%30%0.01 inSE2 mph8 mph85%—5 mi800 ft
Mon 1 AMLight rain showers likely47°47°47°100%56%0.01 inSE2 mph3 mph82%—8 mi1,300 ft
Mon 2 AMLight rain showers likely47°47°47°100%56%0.01 inSE2 mph3 mph82%—8 mi1,300 ft
Mon 3 AMLight rain showers likely47°47°47°100%56%0.01 inSE2 mph3 mph82%—8 mi1,800 ft
Mon 4 AMLight rain showers likely47°44°47°100%66%0.01 inSE6 mph8 mph88%—8 mi1,800 ft
Mon 5 AMLight rain showers likely47°44°47°100%66%0.01 inSE6 mph8 mph88%—8 mi2,200 ft
Mon 6 AMLight rain showers likely47°44°47°100%66%0.01 inSE6 mph8 mph88%—8 mi2,200 ft
Mon 7 AMLight rain showers47°43°47°100%92%0.02 inESE7 mph9 mph95%—6 mi2,200 ft
Mon 8 AMLight rain showers47°43°47°100%92%0.02 inESE7 mph9 mph95%—6 mi1,800 ft
Mon 9 AMLight rain showers47°43°47°100%92%0.02 inESE7 mph9 mph95%—6 mi1,800 ft
Mon 10 AMLight rain showers47°42°47°100%89%0.02 inESE10 mph15 mph93%—7 mi2,200 ft
Mon 11 AMLight rain showers48°44°48°99%89%0.02 inESE10 mph15 mph93%——
Mon 12 PMLight rain showers49°45°48°97%89%0.02 inESE10 mph15 mph93%——
Mon 1 PMLight rain showers49°44°48°95%96%0.05 inSE12 mph16 mph98%——
Mon 2 PMLight rain showers49°44°48°97%96%0.05 inSE12 mph16 mph98%——
Mon 3 PMLight rain showers49°44°48°97%96%0.05 inSE12 mph16 mph98%——
Mon 4 PMLight rain showers48°44°48°99%94%0.06 inSE9 mph13 mph96%——
Mon 5 PMLight rain showers49°45°48°97%94%0.06 inSE9 mph13 mph96%——
Mon 6 PMLight rain showers48°44°48°98%94%0.06 inSE9 mph13 mph96%——
Mon 7 PMLight rain showers49°45°48°97%78%0.02 inSE8 mph12 mph93%——
Mon 8 PMLight rain showers48°45°48°100%78%0.02 inSE8 mph12 mph93%——
Mon 9 PMLight rain showers49°45°49°100%78%0.02 inSE8 mph12 mph93%——
Mon 10 PMLight rain showers49°46°49°100%95%0.03 inSE7 mph9 mph97%——
Mon 11 PMLight rain showers48°45°48°100%95%0.03 inSE7 mph9 mph97%——
Tue 12 AMLight rain showers48°45°48°100%95%0.03 inSE7 mph9 mph97%——
Tue 1 AMLight rain showers48°45°48°100%98%0.05 inSE2 mph3 mph99%——
Tue 2 AMLight rain showers48°45°48°100%98%0.05 inSE2 mph3 mph99%——
Tue 3 AMLight rain showers47°44°47°100%98%0.05 inSE2 mph3 mph99%——
Tue 4 AMLight rain showers47°44°47°100%100%0.03 inSE7 mph9 mph100%——
Tue 5 AMLight rain showers47°44°47°100%100%0.03 inSE7 mph9 mph100%——
Tue 6 AMLight rain showers47°44°47°100%100%0.03 inSE7 mph9 mph100%——
Tue 7 AMLight rain showers47°44°47°100%100%0.05 inSSE7 mph9 mph100%——
Tue 8 AMLight rain showers48°44°48°100%100%0.05 inSSE7 mph9 mph100%——
Tue 9 AMLight rain showers48°45°48°100%100%0.05 inSSE7 mph9 mph100%——
Tue 10 AMLight rain showers48°45°48°99%100%0.03 inESE8 mph12 mph100%——
Tue 11 AMLight rain showers48°45°48°98%100%0.03 inESE8 mph12 mph100%——
Tue 12 PMLight rain showers49°45°48°96%100%0.03 inESE8 mph12 mph100%——
Tue 1 PMLight rain showers49°46°47°95%98%0.03 inSE8 mph12 mph99%——
Tue 2 PMLight rain showers49°46°47°95%98%0.03 inSE8 mph12 mph99%——
Tue 3 PMLight rain showers48°45°47°96%98%0.03 inSE8 mph12 mph99%——
Tue 4 PMLight rain showers48°45°48°97%96%0.03 inSE7 mph9 mph98%——
Tue 5 PMLight rain showers49°46°48°96%96%0.03 inSE7 mph9 mph98%——

The next 16 days

NWS grid published Sep 27, 3:54 PM AKDT to day 8, the mean of GFS, GEFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2750°46°Rain Showers100%1.26 inwind 16 mph · gusts 32 mph
  2. MonSep 2849°46°Rain Showers96%0.61 inwind 12 mph
  3. TueSep 2949°46°Rain Showers100%0.84 inwind 8 mph
  4. WedSep 3050°45°Rain Showers100%0.54 inwind 8 mph · gusts 14 mph
  5. ThuOct 150°44°Rain Showers84%0.64 inwind 7 mph
  6. FriOct 250°45°Rain Showers Likely77%0.61 inwind 9 mph · gusts 15 mph
  7. SatOct 351°47°Rain Showers93%0.90 inwind 12 mph · gusts 18 mph
  8. SunOct 453°46°93%wind 9 mph · gusts 16 mph
  9. MonOct 5~45°42°Model mean0.62 in
  10. TueOct 6~48°42°Model mean0.31 in
  11. WedOct 7~49°43°Model mean0.86 in
  12. ThuOct 8~53°45°Model mean0.29 in
  13. FriOct 9~54°47°Model mean0.43 in
  14. SatOct 10~51°46°Model mean1.28 in
  15. SunOct 11~49°45°Model mean0.46 in
  16. MonOct 12~52°49°Model mean0.33 in

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like46°
  • WindSE 6 mphgusts 16 mph
  • Radar over this pointno reading
  • Humidity97%
  • Dew point48°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility2.4 mi
  • Sunrise and sunsetSunrise · Sunset
  • Moonrise6:24 PMMoonset 8:36 AM
  • Moon phaseWaning gibbous98% lit

The models, side by side

GFS Sep 27, 10:00 AM AKDT · GEFS Sep 27, 10:00 AM AKDT · ECMWF Sep 27, 4:00 AM AKDT · ECMWF AI Sep 27, 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°MonTueWedThuFriSatSun

DayNWS gridGFSGEFSECMWFECMWF AI
Today Sep 2750° 46°1.26 in~46° 40°1.36 in~45° 42°0.94 in49° 42°1.80 in~47° 44°1.68 in
Mon Sep 2849° 46°0.61 in43° 42°0.48 in45° 41°0.44 in47° 41°1.12 in~46° 42°0.54 in
Tue Sep 2949° 46°0.84 in42° 40°0.82 in44° 41°0.30 in46° 44°0.67 in~45° 42°0.75 in
Wed Sep 3050° 45°0.54 in44° 40°0.14 in46° 41°0.27 in47° 42°1.57 in~46° 42°0.59 in
Thu Oct 150° 44°0.64 in47° 40°0.04 in43° 39°0.43 in46° 40°0.63 in~45° 40°0.82 in
Fri Oct 250° 45°0.61 in47° 37°0.45 in44° 38°0.24 in45° 39°0.31 in~45° 39°0.27 in
Sat Oct 351° 47°0.90 in43° 38°0.38 in43° 38°0.46 in~44° 41°0.53 in~45° 42°1.70 in
Sun Oct 453° 46°46° 34°43° 39°0.72 in~49° 43°0.62 in~48° 46°1.55 in
Mon Oct 5—38° 36°0.05 in45° 42°0.57 in~47° 43°0.51 in~50° 47°1.36 in
Tue Oct 6—51° 39°46° 42°0.52 in~46° 41°0.28 in~49° 46°0.46 in
Wed Oct 7—56° 42°~45° 42°0.22 in~46° 42°1.54 in~49° 46°1.66 in
Thu Oct 8—~56° 42°—~51° 47°0.57 in~51° 45°0.31 in
Fri Oct 9—~49° 45°0.34 in—~52° 47°0.22 in~62° 50°0.74 in
Sat Oct 10—~52° 46°0.02 in—~49° 46°1.99 in~54° 48°1.85 in
Sun Oct 11—~49° 47°0.02 in—~48° 43°0.94 in~50° 46°0.43 in
Mon Oct 12—~52° 49°0.33 in—~45° 45°0.14 in~47° 47°0.18 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 Juneau International Airport (Asos) (PAJN) · 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 Mon Oct 12, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

-20°0°20°40°60°TodayOct 1Nov 1Dec 1

Forecast high and lowNormal high and lowRecord high and low

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Sep 2752° / 41°68° (1940)23° (1954)no outlookno outlook
Oct 450° / 40°61° (2022)20° (1958)no outlookno outlook
Oct 1148° / 37°62° (2022)20° (1992)no outlookno outlook
Oct 1846° / 36°60° (1942)18° (2023)no outlookno outlook
Oct 2544° / 33°57° (1942)11° (1984)no outlookno outlook
Nov 141° / 32°56° (1949)9° (2006)no outlookno outlook
Nov 839° / 32°55° (1997)5° (1989)no outlookno outlook
Nov 1536° / 26°52° (1964)-5° (1966)no outlookno outlook
Nov 2237° / 30°54° (2002)-5° (2006)no outlookno outlook
Nov 2935° / 26°52° (2002)-7° (1970)no outlookno outlook
Dec 637° / 29°54° (2017)-16° (1948)no outlookno outlook
Dec 1334° / 26°48° (1954)-15° (1964)no outlookno outlook
Dec 2036° / 28°54° (1999)-11° (1964)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.

The sun is down, so each rating says which span it is for: tomorrow’s daylight, tonight, or the next 24 hours.

Health

  • Arthritisnext 24 hModeratehumid
  • Sinus pressurenext 24 hModeratehumid
  • Common coldtomorrowLowmild
  • FlutomorrowLowmild
  • Migrainenext 24 hModeratehumid
  • Asthmanext 24 hLowclean air
  • Heat stresstomorrowLowmild
  • SunburntomorrowLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtomorrowFairchance of rain
  • HikingtomorrowFairchance of rain
  • BikingtomorrowFairchance of rain
  • GolftomorrowFairchance of rain
  • FishingtomorrowIdealfine conditions
  • Boating and paddlingtomorrowIdealfine conditions
  • Beach and pooltomorrowPoorcool
  • CampingtonightFairrain overnight
  • StargazingtonightPoormostly cloudy

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hGoodchance of rain

Home and garden

  • Lawn mowingtomorrowPoorchance of rain
  • GardeningtomorrowFairchance of rain
  • Outdoor entertainingtomorrowPoorchance of rain
  • Drying laundry outsidetomorrowPoorchance of rain
  • Painting and outdoor projectstomorrowPoorchance of rain
  • FrosttonightLowmild

Pests

  • MosquitoestomorrowHighhumid
  • TickstomorrowVery highhumid
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststomorrowHighhumid

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
SundayPoor8:57 PM to 4:41 AM0 of 8None97%8 h6 mph
MondayPoor8:54 PM to 4:44 AM0 of 8None93%8 h8 mph
TuesdayPoor8:50 PM to 4:46 AM0 of 8None86%8 h6 mph
WednesdayPoor8:47 PM to 4:49 AM0 of 8None78%8 h7 mph
ThursdayPoor8:44 PM to 4:51 AM0 of 8None69%8 h6 mph
FridayPoor8:41 PM to 4:54 AM0 of 8None59%8 h8 mph
SaturdayPoor8:38 PM to 4:56 AM0 of 8None48%8 h10 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
Sun6:14 AM to 6:30 AM6:30 AM to 7:47 AM5:49 PM to 7:06 PM7:06 PM to 7:21 PM
Mon6:17 AM to 6:32 AM6:32 AM to 7:49 AM5:46 PM to 7:03 PM7:03 PM to 7:18 PM
Tue6:19 AM to 6:34 AM6:34 AM to 7:51 AM5:44 PM to 7:00 PM7:00 PM to 7:16 PM
Wed6:21 AM to 6:36 AM6:36 AM to 7:53 AM5:41 PM to 6:57 PM6:57 PM to 7:13 PM
Thu6:23 AM to 6:39 AM6:39 AM to 7:56 AM5:38 PM to 6:55 PM6:55 PM to 7:10 PM
Fri6:25 AM to 6:41 AM6:41 AM to 7:58 AM5:35 PM to 6:52 PM6:52 PM to 7:07 PM
Sat6:28 AM to 6:43 AM6:43 AM to 8:01 AM5:32 PM to 6:49 PM6:49 PM to 7:04 PM
NESWSRSSMRMS
  • SR Sunrise 6:54 AM, 92° E
  • SS Sunset 6:42 PM, 268° W
  • MR Moonrise 6:24 PM, 66° ENE
  • MS Moonset 8:36 AM, 290° WNW
  • Waning gibbous, 98% 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 (chance of rain, visibility under 3 miles (107.51), gusts near or over your limit, low cloud limits height (107.51), civil twilight: lighting required (107.29)). No stretch of two good hours in the next three days.

Today: civil twilight 6:14 AM to sunrise 6:54 AM, and sunset 6:42 PM to 7:21 PM (the Air Almanac’s, as Part 107 uses in Alaska). Anti-collision lighting is required in those minutes and at night.

Sun6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Sun 6 PMNo-fly681976%2.4 miup to 300 ft49°chance of rain, visibility under 3 miles (107.51), gusts near or over your limit, low cloud limits height (107.51), civil twilight: lighting required (107.29)
Sun 7 PMCaution121137%3.2 mi400 ft49°chance of rain, night: lighting and night training required (107.29)
Sun 8 PMCaution121137%3.2 mi400 ft48°chance of rain, night: lighting and night training required (107.29)
Sun 9 PMCaution121137%3.2 mi400 ft48°chance of rain, night: lighting and night training required (107.29)
Sun 10 PMCaution23930%5 mi400 ft48°chance of rain, night: lighting and night training required (107.29)
Sun 11 PMCaution23930%5 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 12 AMCaution23930%5 miup to 300 ft47°chance of rain, low cloud limits height (107.51), night: lighting and night training required (107.29)
Mon 1 AMCaution23456%8 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 2 AMCaution23456%8 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 3 AMCaution23456%8 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 4 AMNo-fly681166%8 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 5 AMNo-fly681166%8 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 6 AMNo-fly681166%8 mi400 ft47°chance of rain, night: lighting and night training required (107.29)
Mon 7 AMNo-fly7101292%6 mi400 ft47°chance of rain
Mon 8 AMNo-fly7101292%6 mi400 ft47°chance of rain
Mon 9 AMNo-fly7101292%6 mi400 ft47°chance of rain
Mon 10 AMNo-fly10152089%7 mi400 ft47°chance of rain, gusts near or over your limit
Mon 11 AMNo-fly10152089%48°chance of rain, gusts near or over your limit
Mon 12 PMNo-fly10152089%49°chance of rain, gusts near or over your limit
Mon 1 PMNo-fly12172196%49°chance of rain, gusts near or over your limit
Mon 2 PMNo-fly12172196%49°chance of rain, gusts near or over your limit
Mon 3 PMNo-fly12172196%49°chance of rain, gusts near or over your limit
Mon 4 PMNo-fly9131794%48°chance of rain
Mon 5 PMNo-fly9131794%49°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.

Sun6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
SundayWet100%1.26 in96%16 mph
MondayWet96%0.61 in95%12 mph
TuesdayWet100%0.84 in94%8 mph
WednesdayWet100%0.54 in89%8 mph
ThursdayWet84%0.64 in90%7 mph
FridayWet64%0.61 in90%9 mph
SaturdayWet84%0.90 in90%12 mph
SundayShowers possible83%0.00 in91%9 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 Sunday, rated best.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Sun Best12:15 AM to 2:15 AM12:39 PM to 2:39 PM8:06 AM to 9:06 AM5:54 PM to 6:54 PM 98%6:54 AM, 6:42 PM
Mon Good1:04 AM to 3:04 AM1:29 PM to 3:29 PM9:44 AM to 10:44 AM6:00 PM to 7:00 PM 95%6:56 AM, 6:39 PM
Tue Good1:56 AM to 3:56 AM2:24 PM to 4:24 PM11:26 AM to 12:26 PM6:09 PM to 7:09 PM 89%6:58 AM, 6:36 PM
Wed Fair2:53 AM to 4:53 AM3:23 PM to 5:23 PM1:09 PM to 2:09 PM6:28 PM to 7:28 PM 81%7:01 AM, 6:33 PM
Thu Fair3:53 AM to 5:53 AM4:25 PM to 6:25 PM2:41 PM to 3:41 PM7:06 PM to 8:06 PM 72%7:03 AM, 6:31 PM
Fri Fair4:56 AM to 6:56 AM5:27 PM to 7:27 PM3:43 PM to 4:43 PM8:15 PM to 9:15 PM 62%7:05 AM, 6:28 PM
Sat Fair5:58 AM to 7:58 AM6:29 PM to 8:29 PM4:17 PM to 5:17 PM9:49 PM to 10:49 PM 52%7:07 AM, 6:25 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 Afternoon50° · 76% · SE 5 mph

    Rain showers. Cloudy, with a high near 50. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

  2. Tonight46° · 76% · SE 0–5 mph

    Rain showers. Cloudy, with a low around 46. Southeast wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

  3. Monday49° · 96% · SE 5–10 mph

    Rain showers. Cloudy, with a high near 49. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

  4. Monday Night46° · 100% · SE 0–10 mph

    Rain showers. Cloudy, with a low around 46. Southeast wind 0 to 10 mph. Chance of precipitation is 100%.

  5. Tuesday49° · 100% · SE 5–10 mph

    Rain showers. Cloudy, with a high near 49. Southeast wind 5 to 10 mph. Chance of precipitation is 100%.

  6. Tuesday Night46° · 100% · SE 0–5 mph

    Rain showers. Cloudy, with a low around 46. Chance of precipitation is 100%.

  7. Wednesday50° · 100% · SE 5–10 mph

    Rain showers. Cloudy, with a high near 50.

  8. Wednesday Night45° · 100% · E 5 mph

    Rain showers. Cloudy, with a low around 45.

  9. Thursday50° · 84% · E 5 mph

    Rain showers. Cloudy, with a high near 50.

  10. Thursday Night44° · 84% · SE 5 mph

    Rain showers. Cloudy, with a low around 44.

  11. Friday50° · 64% · SE 5–10 mph

    Rain showers likely. Cloudy, with a high near 50.

  12. Friday Night45° · 72% · E 5–10 mph

    Rain showers likely. Cloudy, with a low around 45.

  13. Saturday51° · 84% · E 10 mph

    Rain showers. Cloudy, with a high near 51.

  14. Saturday Night47° · 93% · E 5–10 mph

    Rain showers. Cloudy, with a low around 47.

The forecaster’s discussion

NWS Juneau, AK · issued Sep 27, 4:27 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 through this evening across the southern panhandle. Total accumulations of 1-3 inches in 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

Gusty winds and moderate to heavy rain continue to impact the panhandle Sunday afternoon, primarily from Icy Strait southward to Dixon Entrance. The first round of gusty winds was associated with the initial frontal passage earlier this morning from broad troughing over the Gulf of Alaska. This afternoon, a short wave feature spinning up in the wake of this initial frontal passage is bringing enhanced winds once more and also is responsible for the fresh influx of moisture to the central and southern panhandle this afternoon and through this evening. Wind advisories remain in effect for portions of the southern panhandle through this evening, while breezy winds with isolated gusts up to 35 mph remain possible around Juneau through the afternoon hours. Another pocket of cooler air aloft from this shortwave feature is expected to bring some instability to the southeastern gulf through this evening. This predicated the inclusion of isolated thunderstorm potential, with the highest chances being along the outer coast of Prince of Wales Island.

After this shortwave feature moves through, onshore flow will continue into early next week as an area of low pressure gradually drops southeast into the central gulf from the vicinity of Cook Inlet. This low pressure will stagnate over the north central gulf, but continue to bring onshore flow and generally unsettled weather through midweek. Even as this one feature continues to weaken, another is expected to take its place forming in a similar area near Cook Inlet. Overall a continuing active fall pattern for the week ahead with seasonable temperatures in the low to mid 50s, and cloud cover generally limiting cooling overnight.

Long Term

/Tuesday to Saturday/ A weakening low that is anchored in the gulf Tuesday dissipating as it drifts north and melts into the central gulf coast by Wednesday morning. Another low moving NE out of the Pacific looks to move over the Haida Gwaii or BC coast region Thursday rain may cover the southern panhandle, but another feature will drop into the northern gulf and will track east over the northern panhandle into Friday.

There does look to be a stronger low moving into the western gulf with associated frontal band arcing to the central gulf by Saturday with 20 to 30 kt approaching the gulf coastal zones Saturday to Saturday night.

Overall the end of the weeks forecast will stay on the wet side with fairly continuous rain, with better amounts associated to the frontal bands and lows.

Aviation

An upper level disturbance following a front this morning is keeping winds gusty, and creating an environment for LLWS, especially at southern panhandle locales. Relative to our current situation, the atmosphere will become a bit drier this evening/tonight, providing for some lifting and breaks in clouds. As a low from the Bering Sea progresses east across the Gulf, its impacts will be visible in another setup for overcast skies which will sit between 2-5kft. Unfortunately, this means over then next 24 hours many TAF sites will move between VFR/MVFR on a short scale that is tough to depict in a TAF.

Wind gusts and shear will die down this evening and into tonight as the influence of the front and aforementioned disturbance wane. Expect rain to continue as the new low moves in, but vsby issues should be rare to non existent on Monday as rain rates will be lighter than Sunday, and fog is not expected with such a thick cloud deck and precipitation.

Marine

Inner Channel: The back end of a strong frontal system is moving across the panhandle this evening, bringing strong winds and gusty conditions. Winds across the northern inner channels have already begun to diminish, with the southern panhandle to be the main concern through the rest of Sunday night. Strong breezes with gale force gusts can be expected from Stephens Passage, Fredrick Sound, and southern Chatham southward, with Clarence Strait expected to hold elevated winds through early Monday morning. After this system moves through, winds will be largely pressure gradient driven with mainly N/S oriented channels seeing moderate to fresh breezes through the beginning of the week. The biggest point of uncertainty is how high the winds will be in northern Lynn Canal through Monday due the apparent orientation of the pressure gradient. Winds are expected to reach about 20kts, but there is a chance that they could fall below this.

Outer waters: Winds across northern coastal waters have begun to diminish to moderate breezes while southern coastal waters will likely to see strong breezes with gale force gusts through Sunday night. Winds are only expected to decrease from here as the center of the low pressure system moves southeast across the gulf. Significant wave heights range from 8ft in the northern gulf to 14ft in the southern gulf and should return to 4-6ft by Tuesday night.

AJK Watches / Warnings / Advisories

PUBLIC...Wind Advisory until 7 PM AKDT this evening for AKZ327-328. Wind Advisory until 1 AM AKDT Monday for AKZ330-332. MARINE...Small Craft Advisory for PKZ012-013-021-022-031>036-053-641>644- 651-652-661>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 · Sun Sep 27No risk area
  2. Day 2 · Mon Sep 28No risk area
  3. Day 3 · Tue Sep 29No risk area
  4. Day 4 · Wed Sep 30No risk area
  5. Day 5 · Thu Oct 1No risk area
  6. Day 6 · Fri Oct 2No risk area
  7. Day 7 · Sat Oct 3No risk area
  8. Day 8 · Sun Oct 4No risk area

Rainfall

  1. Day 1 · Sun Sep 27Under 0.01 in
  2. Day 2 · Mon Sep 28Under 0.01 in
  3. Day 3 · Tue Sep 29Under 0.01 in
  4. Day 4-5 · Sep 30–Oct 1Under 0.01 in
  5. Day 6-7 · Oct 2–Oct 3Under 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, Juneau Dwtn

The last spring freeze (32°F) usually comes around April 20 and the first fall freeze around October 22: a growing season of about 183 days.

One fall in ten brings a freeze by October 5; one spring in ten still has one after May 5.

Climate of 58.30, -134.42: 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.

ElementSunMonTueWedThuFriSatSun
Wind chill min44°42°44°45°43°44°42°44°
Lightning activity level max11111111
Snow level min4,500 ft3,900 ft4,000 ft4,000 ft3,600 ft3,600 ft4,200 ft5,400 ft
Cloud ceiling min700 ft800 ft
Visibility min2.4 mi5 mi
Mixing height max600 ft1,000 ft1,300 ft1,100 ft1,400 ft1,900 ft2,000 ft1,300 ft
Transport wind max15 mph10 mph9 mph8 mph7 mph9 mph12 mph10 mph
Twenty-foot wind max14 mph9 mph7 mph7 mph6 mph8 mph10 mph8 mph
Wave height max3.0 ft2.0 ft2.0 ft2.0 ft1.0 ft2.0 ft0.0 ft0.0 ft

Against the record

NOAA GHCN · Juneau International Airport (Asos) (PAJN) · 6.7 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
Sun Sep 2750° / 46°52° / 44°68° (1940)27° (1983)
Mon Sep 2849° / 46°53° / 42°60° (2017)26° (1961)
Tue Sep 2949° / 46°53° / 40°65° (2018)25° (1971)
Wed Sep 3050° / 45°52° / 41°68° (1940)28° (1996)
Thu Oct 150° / 44°52° / 39°63° (2018)25° (2000)
Fri Oct 250° / 45°52° / 38°60° (1967)24° (2000)
Sat Oct 351° / 47°52° / 38°61° (2003)23° (1954)
Sun Oct 453° / 46°50° / 40°58° (1988)23° (1954)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sun6:14 AM6:54 AM6:42 PM7:21 PM11 h 48 min Waning gibbous · 98% lit
Mon6:17 AM6:56 AM6:39 PM7:18 PM11 h 43 min Waning gibbous · 95% lit
Tue6:19 AM6:58 AM6:36 PM7:16 PM11 h 38 min Waning gibbous · 89% lit
Wed6:21 AM7:01 AM6:33 PM7:13 PM11 h 32 min Waning gibbous · 81% lit
Thu6:23 AM7:03 AM6:31 PM7:10 PM11 h 28 min Waning gibbous · 72% lit
Fri6:25 AM7:05 AM6:28 PM7:07 PM11 h 23 min Waning gibbous · 62% lit
Sat6:28 AM7:07 AM6:25 PM7:04 PM11 h 18 min Last quarter · 52% lit
Sun6:30 AM7:09 AM6:22 PM7:01 PM11 h 13 min Last quarter · 41% 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