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Forecast confidence: High · models disagree by 1°F

Santee weather

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Cloudy,much the same tomorrow

NWS, the American and the European model agree on a high near 81° in Santee today. Tomorrow looks partly cloudy around 83°, with a 0% chance of rain.

81°65°
83°62°
82°62°
79°65°
81°63°
85°65°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±4°Mondaymodels agreeTuesdaysplit ±4°Wednesdaysplit ±4°
NWSNational Blend (NBM)
81°
Cloudy
Today 81°·Low 64°·Rain 1%
AmericanNOAA GFS
82°
Cloudy
Today 82°·Low 65°·Rain 1%
EuropeanECMWF
81°
Cloudy
Today 81°·Low 65°·Rain 0%
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Santee weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Santee weather in numbers

from 30 years of measured normals

Santee swings 42°F across the year, from 88°F highs in August to 46°F lows in January, and March is usually the wettest month in a year that brings about 26 in of precipitation.

Warmest month
August
88°F average high
Coldest month
January
46°F average low
Wettest month
March
26 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
January, February, April and May
Residents
58,000
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The weather map: all three models at once

NWS, American, European side by side around Santee and nearby towns.Live rain radar →
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Santee hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Santee 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Cloudy
81° 65°
models agree
Tomorrow
Partly cloudy
83° 62°
models agree
Sun
Partly cloudy
82° 62°
±4°
Mon
Cloudy
79° 65°
models agree
Tue
Partly cloudy
81° 63°
±4°
Wed
Mostly clear
85° 65°
±4°
Thu
Partly cloudy
85° 66°
±7°
Fri
Mostly clear
86° 68°
±14°
Sat
Cloudy
88° 68°
±14°
Sun
Partly cloudy
92° 72°
±11°
Mon
Cloudy
93° 74°
±17°
Tue
Cloudy
94° 75°
±7°
Wed
Clear
84° 68°
models agree
Thu
Clear
78° 67°
models agree

Santee, California (CA) is at its warmest in Aug (average highs near 88°F) and coldest in Jan (lows around 46°F), with roughly 26 in of precipitation across the year. Below, compare what NWS, American, European forecast for Santee right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Santee climate by month

average daytime high and overnight low across a typical year
Jan
63°
46°
Feb
63°
46°
Mar
63°
48°
Apr
69°
51°
May
71°
55°
Jun
77°
59°
Jul
87°
64°
Aug
88°
65°
Sep
84°
64°
Oct
83°
59°
Nov
74°
51°
Dec
70°
49°

Which forecast is most accurate in Santee?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
85
/100rank #1
88±1.2°F94±2.0 mph7687% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
83
/100rank #2
63±3.7°F97±0.9 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°81° to 82°±1%0% to 1% chance
Tomorrow±2°82° to 84°models agree0% to 0% chance
Sun±4°80° to 84°models agree0% to 0% chance
Mon±2°79° to 81°±14%4% to 18% chance
Tue±4°79° to 83°±1%0% to 1% chance

The models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Santee

today, local time
Sunrise
06:33
Sunset
18:49
Daylight
12h 16m

Common questions

What's the weather in Santee today?
On this page we show what NWS, American, European each forecast for Santee today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Santee today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Santee and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Santee?
Over the last 30 days, the American model has been the most accurate for Santee (CheckWeather Score 85/100), ahead of the European at 83. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Santee?
August is typically the warmest month in Santee, with average highs around 88°F.
How cold does Santee get?
The coldest month in Santee is January, when overnight lows average about 46°F.
How much rain does Santee get?
Santee sees roughly 26 in of precipitation a year, with March usually the wettest month.

Nearby

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