Current weather · Sep 28, 1:59 AM PDT

33.6550, -115.9900

77°

Light rain showers likelyFeels like 77° · Humidity 50%NWS forecast for this hour; no recent station reportForecast by NWS San Diego, CA · grid 106,48
High
83°
Low
68°
Rain today
62%
Sunrise
6:36 AM
Sunset
6:32 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
Mon 1 AMLight rain showers likely77°77°57°50%62%0.00 inSE6 mph12 mph94%2%——
Mon 2 AMLight rain showers likely76°76°58°54%62%0.00 inSE7 mph13 mph89%3%——
Mon 3 AMLight rain showers likely75°75°59°58%62%0.00 inSE7 mph14 mph89%3%——
Mon 4 AMLight rain showers likely74°75°59°58%62%0.00 inESE7 mph13 mph89%3%——
Mon 5 AM74°74°59°60%8%ESE6 mph12 mph80%1%——
Mon 6 AM73°73°60°63%8%ESE6 mph12 mph80%1%——
Mon 7 AM73°73°61°66%8%ESE6 mph12 mph80%1%——
Mon 8 AM77°77°62°61%4%SE6 mph12 mph56%1%——
Mon 9 AM77°77°62°61%4%SE8 mph14 mph56%1%——
Mon 10 AM77°77°62°60%4%SSE9 mph16 mph56%1%——
Mon 11 AM78°78°62°58%2%SSE9 mph17 mph17%4%——
Mon 12 PM79°79°61°54%2%SSE10 mph18 mph17%4%——
Mon 1 PM80°81°60°50%2%SSE10 mph17 mph17%4%——
Mon 2 PM81°81°59°46%6%SSE12 mph18 mph14%5%——
Mon 3 PM82°81°57°43%6%SSE12 mph21 mph14%5%——
Mon 4 PM82°82°55°39%6%SSE12 mph20 mph14%5%——
Mon 5 PM81°80°53°39%11%SSE12 mph18 mph26%7%——
Mon 6 PM80°80°53°39%11%SE9 mph17 mph26%7%——
Mon 7 PM78°78°52°41%11%SE10 mph17 mph26%7%——
Mon 8 PM75°75°52°44%9%ESE10 mph17 mph22%3%——
Mon 9 PM75°75°50°41%9%E10 mph17 mph22%3%——
Mon 10 PM74°74°48°40%9%ENE9 mph17 mph22%3%——
Mon 11 PM73°73°46°39%2%ENE8 mph14 mph16%1%——
Tue 12 AM72°72°45°39%2%E7 mph14 mph16%1%——
Tue 1 AM70°71°44°38%2%E9 mph16 mph16%1%——
Tue 2 AM70°70°43°38%2%E10 mph18 mph16%——
Tue 3 AM69°69°44°40%2%ENE12 mph20 mph16%——
Tue 4 AM69°69°45°42%2%NNE13 mph21 mph16%——
Tue 5 AM69°69°46°44%0%N13 mph22 mph14%——
Tue 6 AM68°69°47°46%0%N13 mph22 mph14%——
Tue 7 AM70°70°48°46%0%NNW13 mph22 mph14%——
Tue 8 AM76°76°48°38%0%NW13 mph22 mph9%——
Tue 9 AM78°78°48°36%0%NW14 mph22 mph9%——
Tue 10 AM78°78°47°34%0%NW15 mph23 mph9%——
Tue 11 AM80°79°46°30%0%WNW15 mph25 mph4%——
Tue 12 PM82°81°46°28%0%NW17 mph28 mph4%——
Tue 1 PM84°82°45°25%0%NNW18 mph29 mph4%——
Tue 2 PM85°83°44°24%0%NNW20 mph31 mph2%——
Tue 3 PM86°83°44°23%0%NNW20 mph31 mph2%——
Tue 4 PM87°84°43°22%0%NNW20 mph31 mph2%——
Tue 5 PM85°82°43°22%0%NNW18 mph29 mph4%——
Tue 6 PM84°82°43°24%0%NNW15 mph25 mph4%——
Tue 7 PM82°80°43°26%0%NNW12 mph20 mph4%——
Tue 8 PM79°79°43°28%0%N9 mph16 mph4%——
Tue 9 PM78°78°42°28%0%N8 mph15 mph4%——
Tue 10 PM77°77°40°26%0%N8 mph15 mph4%——
Tue 11 PM76°76°38°25%0%N9 mph16 mph4%——
Wed 12 AM75°75°38°26%0%N9 mph16 mph4%——

The next 16 days

NWS grid published Sep 28, 12:16 AM PDT to day 8, the National Blend of Models to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2883°68°Mostly Sunny62%0.02 inwind 12 mph · gusts 21 mph
  2. TueSep 2987°72°Sunny2%wind 20 mph · gusts 31 mph
  3. WedSep 3091°73°Sunny0%wind 13 mph · gusts 21 mph
  4. ThuOct 191°75°Sunny0%wind 7 mph · gusts 14 mph
  5. FriOct 292°75°Sunny0%wind 8 mph · gusts 15 mph
  6. SatOct 393°76°Sunny0%wind 7 mph · gusts 13 mph
  7. SunOct 494°76°Sunny0%wind 8 mph · gusts 15 mph
  8. MonOct 593°76°1%wind 8 mph · gusts 14 mph
  9. TueOct 693°77°National Blend2%wind 7 mph
  10. WedOct 795°77°National Blend1%wind 9 mph
  11. ThuOct 8~92°75°Model mean
  12. FriOct 9~91°77°Model mean0.04 in
  13. SatOct 10~90°75°Model mean
  14. SunOct 11~91°75°Model mean
  15. MonOct 12~90°75°Model mean
  16. TueOct 13~83°71°Model mean

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like77°
  • WindSE 6 mphgusts 12 mph
  • Radar over this pointno reading
  • Humidity50%
  • Dew point57°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility—
  • Sunrise and sunsetSunrise · Sunset · not yet up
  • Moonrise7:34 PMMoonset 8:45 AM
  • Moon phaseWaning gibbous95% lit

The National Blend of Models

NOAA NBM v5.0 · run of Sep 27, 11:00 PM PDT

NOAA’s weighted blend of every model it runs, to eleven days, with the chances the grid above does not carry. Where the local office’s grid reaches, its figure sits beneath the blend’s; where it does not, the blend stands alone.

  1. TodaySep 2883°68°NWS grid 83° / 68°rain 14%thunder 10%0.02 inwind 12 mph · gusts 18 mph
  2. TueSep 2987°72°NWS grid 87° / 72°rain 3%wind 20 mph · gusts 30 mph
  3. WedSep 3091°73°NWS grid 91° / 73°rain 0%wind 13 mph
  4. ThuOct 191°75°NWS grid 91° / 75°rain 0%wind 7 mph
  5. FriOct 292°76°NWS grid 92° / 75°rain 0%wind 8 mph · gusts 14 mph
  6. SatOct 393°76°NWS grid 93° / 76°rain 0%wind 7 mph · gusts 13 mph
  7. SunOct 494°76°NWS grid 94° / 76°rain 1%wind 8 mph · gusts 14 mph
  8. MonOct 593°76°NWS grid 93° / 76°rain 1%wind 8 mph · gusts 14 mph
  9. TueOct 693°77°Beyond the NWS gridrain 2%wind 7 mph
  10. WedOct 795°77°Beyond the NWS gridrain 1%wind 9 mph
  11. ThuOct 895°—Beyond the NWS gridrain 1%wind 8 mph
68°82°95°TueWedThuFriSatSunMon

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Sep 27, 5:00 PM PDT · GFS Sep 27, 5:00 PM PDT · GEFS Sep 27, 5:00 PM PDT · ECMWF Sep 27, 5:00 PM PDT · ECMWF AI Sep 27, 5:00 PM PDT

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.

59°82°104°TueWedThuFriSatSunMon

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Sep 2883° 68°0.02 in82° 68°0.07 in83° 70°86° 71°0.05 in75° 66°0.21 in~79° 68°0.12 in
Tue Sep 2987° 72°84° 65°84° 67°86° 68°0.01 in83° 66°~79° 63°0.02 in
Wed Sep 3091° 73°—92° 72°94° 73°87° 69°~89° 67°
Thu Oct 191° 75°—92° 71°94° 73°90° 71°~92° 71°
Fri Oct 292° 75°—91° 74°95° 74°90° 76°~93° 74°
Sat Oct 393° 76°—92° 72°95° 75°90° 76°~94° 75°
Sun Oct 494° 76°—94° 76°96° 76°~90° 75°~94° 76°
Mon Oct 593° 76°—92° 79°95° 77°~89° 73°~94° 78°
Tue Oct 6——87° 74°0.03 in94° 77°~88° 76°~95° 78°
Wed Oct 7——89° 75°0.01 in94° 77°~93° 82°~97° 77°
Thu Oct 8——~85° 72°—~96° 78°~97° 75°
Fri Oct 9——~86° 78°0.10 in—~91° 77°~96° 75°
Sat Oct 10——~86° 75°—~88° 75°~97° 74°
Sun Oct 11——~86° 74°—~91° 75°~96° 75°
Mon Oct 12——~85° 74°—~90° 75°~94° 74°
Tue Oct 13——~83° 71°———

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 Thermal Airport (TRM) · 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 Tue Oct 13, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

Climate Prediction Center (CPC) temperature lean70%80%warmer 33% · Oct 202640% chance above normal · Oct to Dec20°40°60°80°100°TodayOct 1Nov 1Dec 1

Forecast high and lowNormal high and lowRecord high and lowCPC leans warmer than normal

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Sep 2899° / 63°114° (1980)45° (1971)33% chance above normal · Oct 202633% chance above normal · Oct 2026
Oct 595° / 58°111° (1996)43° (1992)80% chance above normal · days 8 to 14near normal most likely · days 8 to 14
Oct 1293° / 57°110° (1950)37° (1994)33% chance above normal · Oct 202633% chance above normal · Oct 2026
Oct 1990° / 55°108° (1991)33° (1996)33% chance above normal · Oct 202633% chance above normal · Oct 2026
Oct 2685° / 50°101° (1966)28° (1971)33% chance above normal · Oct 202633% chance above normal · Oct 2026
Nov 284° / 45°98° (1997)31° (1994)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 979° / 46°96° (1956)24° (1994)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 1680° / 42°93° (1999)24° (1994)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 2376° / 41°93° (1950)20° (2010)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 3072° / 38°93° (1958)23° (1992)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Dec 771° / 39°88° (1957)17° (1994)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Dec 1468° / 36°88° (1980)18° (1992)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Dec 2170° / 36°87° (1950)14° (1990)40% chance above normal · Oct to Dec33% chance above normal · Oct to Dec

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 hLowsteady conditions
  • Sinus pressurenext 24 hLowsteady conditions
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightVery goodwarm night

Outdoors

  • RunningtodayGoodhot
  • HikingtodayIdealfine conditions
  • BikingtodayIdealfine conditions
  • GolftodayIdealfine conditions
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayVery goodwind
  • Beach and pooltodayIdealfine conditions
  • CampingtonightGoodrain overnight
  • StargazingtonightPoorovercast

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayIdealfine conditions
  • GardeningtodayIdealfine conditions
  • Outdoor entertainingtodayIdealfine conditions
  • Drying laundry outsidetodayIdealfine conditions
  • Painting and outdoor projectstodayIdealfine conditions
  • FrosttonightLowmild

Pests

  • MosquitoestodayHighwarm
  • TickstodayModeratewarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayHighwarm

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 fair.

Night ofRatingDarkClear hoursClear and moonlessMoon litTransparency (est.)DewStrongest wind
MondayFair7:55 PM to 5:14 AM6 of 9None93%Good13 mph
TuesdayFair7:53 PM to 5:15 AM9 of 9None87%Good12 mph
WednesdayFair7:52 PM to 5:16 AM9 of 91 h from 8:00 PM79%Good3 mph
ThursdayFair7:51 PM to 5:16 AM9 of 92 h from 8:00 PM70%Good3 mph
FridayGood7:49 PM to 5:17 AM9 of 93 h from 8:00 PM59%Good3 mph
SaturdayExcellent7:48 PM to 5:18 AM9 of 94 h from 8:00 PM49%Good3 mph
SundayExcellent7:47 PM to 5:19 AM9 of 95 h from 8:00 PM38%Good3 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
Mon6:12 AM to 6:21 AM6:21 AM to 7:09 AM5:59 PM to 6:47 PM6:47 PM to 6:57 PM
Tue6:12 AM to 6:22 AM6:22 AM to 7:10 AM5:58 PM to 6:46 PM6:46 PM to 6:56 PM
Wed6:13 AM to 6:23 AM6:23 AM to 7:11 AM5:56 PM to 6:45 PM6:45 PM to 6:54 PM
Thu6:14 AM to 6:23 AM6:23 AM to 7:12 AM5:55 PM to 6:43 PM6:43 PM to 6:53 PM
Fri6:14 AM to 6:24 AM6:24 AM to 7:12 AM5:54 PM to 6:42 PM6:42 PM to 6:52 PM
Sat6:15 AM to 6:25 AM6:25 AM to 7:13 AM5:52 PM to 6:41 PM6:41 PM to 6:50 PM
Sun6:16 AM to 6:25 AM6:25 AM to 7:14 AM5:51 PM to 6:39 PM6:39 PM to 6:49 PM
NESWSRSSMRMS
  • SR Sunrise 6:36 AM, 92° E
  • SS Sunset 6:32 PM, 268° W
  • MR Moonrise 7:34 PM, 68° ENE
  • MS Moonset 8:45 AM, 289° WNW
  • Waning gibbous, 95% 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, night: lighting and night training required (107.29)). Next good stretch: Mon 7 AM to 10 AM, 3 hours.

Today: civil twilight for Part 107 6:06 AM to sunrise 6:36 AM, and sunset 6:32 PM to 7:02 PM. Anti-collision lighting is required in those minutes and at night.

Mon6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Mon 1 AMNo-fly681462%77°chance of rain, night: lighting and night training required (107.29)
Mon 2 AMNo-fly7101662%76°chance of rain, night: lighting and night training required (107.29)
Mon 3 AMNo-fly7101762%75°chance of rain, night: lighting and night training required (107.29)
Mon 4 AMNo-fly7101662%74°chance of rain, night: lighting and night training required (107.29)
Mon 5 AMCaution68148%74°night: lighting and night training required (107.29)
Mon 6 AMCaution68148%73°night: lighting and night training required (107.29)
Mon 7 AMGood68148%73°nothing against it
Mon 8 AMGood67134%77°nothing against it
Mon 9 AMGood810164%77°nothing against it
Mon 10 AMCaution912194%77°gusts near or over your limit
Mon 11 AMCaution911192%78°gusts near or over your limit
Mon 12 PMCaution1012202%79°gusts near or over your limit
Mon 1 PMCaution1012192%80°gusts near or over your limit
Mon 2 PMCaution1215226%81°gusts near or over your limit
Mon 3 PMCaution1215246%82°gusts near or over your limit
Mon 4 PMNo-fly1217256%82°gusts near or over your limit
Mon 5 PMCaution12172411%81°gusts near or over your limit
Mon 6 PMNo-fly9223011%80°gusts near or over your limit, wind at 400 ft near or over your limit, civil twilight: lighting required (107.29)
Mon 7 PMNo-fly10253211%78°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Mon 8 PMNo-fly1025329%75°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Mon 9 PMNo-fly1025329%75°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Mon 10 PMNo-fly922309%74°gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Mon 11 PMNo-fly819252%73°gusts near or over your limit, wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Tue 12 AMCaution717232%72°gusts near or over your limit, night: lighting and night training required (107.29)

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

  • Mon 5 AM to 10 AM 5 hours, every hour within the rules
  • Mon 11 PM to Tue 1 AM 2 hours, some with delta T between 8 and 10 °C
  • Thu 3 AM to 7 AM 4 hours, some with delta T between 8 and 10 °C
  • Fri 4 AM to 7 AM 3 hours, some with delta T between 8 and 10 °C
  • Sat 2 AM to 7 AM 5 hours, some with delta T between 8 and 10 °C
  • Sun 3 AM to 6 AM 3 hours, some with delta T between 8 and 10 °C
  • Mon 4 AM to 6 AM 2 hours, some with delta T between 8 and 10 °C
Mon6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM
Thu12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
MondayDry11%0.02 in39%12 mph8 dGood
TuesdayDry0%0.00 in22%20 mph7 dGood
WednesdayDry0%0.00 in19%12 mph6 dGood
ThursdayDry0%0.00 in21%7 mph5 dGood
FridayDry0%0.00 in24%8 mph4 dGood
SaturdayDry0%0.00 in22%7 mph3 dGood
SundayDry0%0.00 in20%8 mph2 dGood
MondayDry1%0.00 in23%8 mph1 dGood

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 Monday, rated good.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Mon Good12:47 AM to 2:47 AM1:13 PM to 3:13 PM8:15 AM to 9:15 AM7:04 PM to 8:04 PM 95%6:36 AM, 6:32 PM
Tue Fair1:40 AM to 3:40 AM2:07 PM to 4:07 PM9:25 AM to 10:25 AM7:44 PM to 8:44 PM 89%6:37 AM, 6:31 PM
Wed Poor2:36 AM to 4:36 AM3:06 PM to 5:06 PM10:36 AM to 11:36 AM8:31 PM to 9:31 PM 82%6:38 AM, 6:29 PM
Thu Fair3:36 AM to 5:36 AM4:08 PM to 6:08 PM11:46 AM to 12:46 PM9:28 PM to 10:28 PM 73%6:38 AM, 6:28 PM
Fri Fair4:39 AM to 6:39 AM5:10 PM to 7:10 PM12:50 PM to 1:50 PM10:32 PM to 11:32 PM 63%6:39 AM, 6:27 PM
Sat Fair5:41 AM to 7:41 AM6:12 PM to 8:12 PM1:46 PM to 2:46 PM 52%6:40 AM, 6:25 PM
Sun Fair6:41 AM to 8:41 AM7:09 PM to 9:09 PM11:42 PM to 12:42 AM2:32 PM to 3:32 PM 42%6:41 AM, 6:24 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. Overnight73° · 62% · SE 5 mph

    Rain showers likely before 5am. Cloudy, with a low around 73. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

  2. Monday83° · 11% · SE 5–10 mph

    Mostly sunny, with a high near 83. Southeast wind 5 to 10 mph, with gusts as high as 25 mph.

  3. Monday Night68° · 11% · E 5–15 mph

    Mostly clear, with a low around 68. East wind 5 to 15 mph, with gusts as high as 25 mph.

  4. Tuesday87° · NW 15–20 mph

    Sunny, with a high near 87. Northwest wind 15 to 20 mph, with gusts as high as 35 mph.

  5. Tuesday Night72° · N 10–15 mph

    Clear, with a low around 72. North wind 10 to 15 mph, with gusts as high as 25 mph.

  6. Wednesday91° · W 5–15 mph

    Sunny, with a high near 91.

  7. Wednesday Night73° · N 0–5 mph

    Clear, with a low around 73.

  8. Thursday91° · SE 0–5 mph

    Sunny, with a high near 91.

  9. Thursday Night75° · NE 0–5 mph

    Clear, with a low around 75.

  10. Friday92° · E 0–10 mph

    Sunny, with a high near 92.

  11. Friday Night75° · NE 0–5 mph

    Clear, with a low around 75.

  12. Saturday93° · E 5 mph

    Sunny, with a high near 93.

  13. Saturday Night76° · NE 0–5 mph

    Clear, with a low around 76.

  14. Sunday94° · SE 5–10 mph

    Sunny, with a high near 94.

The forecaster’s discussion

NWS San Diego, CA · issued Sep 28, 1:11 AM PDT

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

The thick band of mid and high level moisture and clouds will move east of the area by early this afternoon. High temperatures will be a few degrees cooler today, followed by a warming trend into next weekend with widespread moderate or greater HeatRisk for the coast and valleys for Thursday through Sunday with near record warm overnight temperatures for Friday through Sunday.

Discussion

FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

Short Term (Today Through Wednesday)

Mid and high level moisture from former Hurricane Odalys continues to stream northeastward and across about the southeastern half of southern California early this morning. A band of mostly light showers is across about the southeastern third of San Diego County with hourly rainfall of less than one- tenth inch per hour. The greatest totals since Sunday are in the far southern San Diego County valleys and mountains with 0.15 to 0.25 inch through midnight. The western edge of the showers will move slowly to the east overnight with the band of thicker mid and high clouds decreasing from the northwest during this morning.

High temperatures will be a few degrees cooler today, followed by warming on Tuesday and greater inland warming on Wednesday. With the warming, high temperatures on Wednesday will range from around 80 near the coast to the upper 80s to mid 90s for the Inland Empire with the lower deserts in the upper 90s.

Long Term (Thursday Through Sunday)

High pressure aloft will continue the warming trend into next weekend with only slight cooling on Sunday. Widespread moderate or greater HeatRisk is expected for the coast and valleys for Thursday through Sunday with widespread major HeatRisk for inland coastal areas into the western San Diego County valleys for next weekend.

High temperatures for next weekend will range from a few degrees above average for the lower deserts to as much as 12 to 18 degrees above average for the coast and valleys in San Diego County. High temperatures for next weekend will range from the 80s near the coast to the mid 90s to around 100 for the inland valleys with the lower deserts around 100.

For next weekend, low temperatures for the Orange County coastal plain, and for the coast and western valleys in San Diego County will be mostly in the lower to mid 70s. For Friday through Sunday, there could be several records tied or broken for record warm low temperatures, mostly for coastal and valley locations. The existing records for some of those locations was from 1997.

Aviation

280530Z...BKN middle and high clouds above 9 kft MSL with -RA mainly in San Diego County and central Riverside County overnight. These clouds and -RA will gradually clear from northwest to southeast overnight. Very patchy low clouds based at around 1500 feet MSL at the coast are expected between 11-17Z Monday. Any cigs at coastal airports would be very brief and intermittent. Some cumulus based at around 10 kft should develop over mountains 19-01Z Monday. Otherwise, mostly clear regionwide through Monday, with some coastal low clouds beginning to develop Monday eve after 03Z.

Marine

Northwest winds are expected gusting to 20-25 knots in the outer waters, along with choppy seas Monday afternoon and evening. The Small Craft Advisory contains more details. No hazardous marine conditions are expected Tuesday through Friday.

Beaches

Southwesterly swell (3-4 ft at 13 seconds from ~200 degrees) from Hurricane Odalys persists into Monday, bringing surf of 3-5 feet with sets up to 6 feet, highest along south and southwest facing beaches. A swell from Hurricane Polo (~4 ft at 12-13 seconds from 160-170 degrees) then increases on Monday. Given this direction, most of San Diego County beaches will be largely sheltered from this swell, but Orange County beaches (especially in north OC) should be impacted. Meanwhile, a northwesterly swell (3-4 ft at 7 seconds from ~280 degrees) arrives later today and Monday. Between these two swells, surf of 3-5 feet with sets to 6 feet looks probable along south/southwest facing beaches with surf 3-5 feet along west-facing beaches through Tuesday. With this elevated surf, there is a high risk for strong rip and longshore currents through Tuesday.

Tides are already observed over 6.8 feet and are expected to peak around 7.0ft for the late-morning high tides on Monday-Wednesday, highest on Tuesday. A Beach Hazard Statement remains in effect through tonight due to the risk of minor tidal overflow and minor coastal erosion. A Coastal Flood Advisory is in effect from early Monday morning through Wednesday afternoon to account for the highest tides combining with the expected elevated surf. Primary impacts during the morning high tides Monday-Wednesday will be minor coastal flooding in low lying areas in addition to coastal erosion.

Please note - listed tide predictions have been adjusted to reflect actual measured tide observations.

Skywarn

Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.

SGX Watches / Warnings / Advisories

CA...Beach Hazards Statement until 5 AM PDT Monday for Orange County Coastal Areas-San Diego County Coastal Areas.

Coastal Flood Advisory from 5 AM Monday to 5 PM PDT Wednesday for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ...Small Craft Advisory from 11 AM to 11 PM PDT Monday for Waters from San Mateo Point to the Mexican Border Extending 10 to 60 nm out including San Clemente Island.

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

Rainfall

  1. Day 1 · Mon Sep 280.01 in
  2. Day 2 · Tue Sep 29Under 0.01 in
  3. Day 3 · Wed Sep 30Under 0.01 in
  4. Day 4-5 · Oct 1–Oct 2Under 0.01 in
  5. Day 6-7 · Oct 3–Oct 4Under 0.01 in

The rainfall forecast on the map, days 1 to 7

Six to fourteen days

  1. Days 6–10 · Temperature70% chance above normalOct 3–Oct 7
  2. Days 6–10 · PrecipitationNear normal most likelyOct 3–Oct 7
  3. Days 8–14 · Temperature80% chance above normalOct 5–Oct 11
  4. Days 8–14 · PrecipitationNear normal most likelyOct 5–Oct 11

Drought

  1. Drought Monitor, map of Sep 22D0 Abnormally dry

Drought in this county: the map, the record since 2000 and the outlook

Frost and climate

NOAA 1991-2020 normals, Mecca Fire Stn

The last spring freeze (32°F) usually comes around January 6 and the first fall freeze around December 22: a growing season of about 352 days.

One fall in ten brings a freeze by December 4; one spring in ten still has one after February 4.

Climate of 33.66, -115.99: normals, records and every month

Everything else on the grid

NWS forecast grid · 33 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.

ElementMonTueWedThuFriSatSunMon
HeatRisk max1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor
Wet bulb globe temperature max75°71°75°77°79°79°79°78°
Heat index max82°84°86°87°89°89°90°89°
Chance of thunder max7%1%0%0%0%0%0%1%
Snow level min9,200 ft9,000 ft10,300 ft11,300 ft11,600 ft11,700 ft11,600 ft11,800 ft
Mixing height max6,900 ft10,400 ft5,400 ft3,200 ft5,000 ft3,500 ft3,600 ft
Transport wind max15 mph26 mph13 mph8 mph10 mph8 mph8 mph
Twenty-foot wind max8 mph14 mph9 mph5 mph6 mph5 mph6 mph

Against the record

NOAA GHCN · Thermal Airport (TRM) · 10.0 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
Mon Sep 2883° / 68°100° / 64°110° (1963)52° (2013)
Tue Sep 2987° / 72°100° / 64°112° (1980)52° (2013)
Wed Sep 3091° / 73°99° / 63°112° (2020)50° (1999)
Thu Oct 191° / 75°99° / 63°113° (2020)49° (2021)
Fri Oct 292° / 75°98° / 63°114° (1980)45° (1971)
Sat Oct 393° / 76°96° / 62°107° (1952)50° (1950)
Sun Oct 494° / 76°95° / 62°108° (1952)47° (2002)
Mon Oct 593° / 76°93° / 60°109° (1952)47° (1969)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Mon6:12 AM6:36 AM6:32 PM6:57 PM11 h 56 min Waning gibbous · 95% lit
Tue6:12 AM6:37 AM6:31 PM6:56 PM11 h 54 min Waning gibbous · 89% lit
Wed6:13 AM6:38 AM6:29 PM6:54 PM11 h 51 min Waning gibbous · 82% lit
Thu6:14 AM6:38 AM6:28 PM6:53 PM11 h 50 min Waning gibbous · 73% lit
Fri6:14 AM6:39 AM6:27 PM6:52 PM11 h 48 min Waning gibbous · 63% lit
Sat6:15 AM6:40 AM6:25 PM6:50 PM11 h 45 min Last quarter · 52% lit
Sun6:16 AM6:41 AM6:24 PM6:49 PM11 h 43 min Last quarter · 42% lit
Mon6:16 AM6:41 AM6:23 PM6:48 PM11 h 42 min Waning crescent · 31% 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