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CheckWeather USSanta Rosa
Forecast confidence: High · models disagree by 4°F

Santa Rosa weather

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Mostly clear,much the same tomorrow

NWS, the American and the European model agree on a high near 76° in Santa Rosa today. Tomorrow looks partly cloudy around 79°, with a 0% chance of rain.

76°50°
79°50°
85°52°
90°61°
95°67°
97°70°
Todaymodels agreeTomorrowsplit ±5°Mondaysplit ±5°Tuesdaysplit ±8°Wednesdaysplit ±12°Thursdaysplit ±19°
NWSNational Blend (NBM)
74°
Mostly clear
Today 74°·Low 50°·Rain 0%
AmericanNOAA GFS
78°
Fog
Today 78°·Low 47°·Rain 0%
EuropeanECMWF
77°
Clear
Today 77°·Low 53°·Rain 0%

The weather map: all three models at once

NWS, American, European side by side around Santa Rosa and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Mostly clear
76° 50°
models agree
Tomorrow
Partly cloudy
79° 50°
±5°
Mon
Mostly clear
85° 52°
±5°
Tue
Cloudy
90° 61°
±8°
Wed
Cloudy
95° 67°
±12°
Thu
Partly cloudy
97° 70°
±19°
Fri
Mostly clear
84° 61°
±10°
Sat
Light drizzle
79° 58°
±8°
Sun
Partly cloudy
79° 56°
±12°
Mon
Mostly clear
81° 56°
±14°
Tue
Partly cloudy
82° 57°
±16°
Wed
Clear
91° 60°
±11°
Thu
Clear
89° 61°
±7°
Fri
Clear
86° 58°
models agree

Santa Rosa, CA is at its warmest in Jul (average highs near 89°F) and coldest in Feb (lows around 41°F), with roughly 42 in of precipitation across the year. Below, compare what NWS, American, European forecast for Santa Rosa 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.

Santa Rosa climate by month

average daytime high and overnight low across a typical year
Jan
58°
43°
Feb
58°
41°
Mar
59°
42°
Apr
68°
45°
May
73°
50°
Jun
81°
54°
Jul
89°
57°
Aug
86°
58°
Sep
82°
55°
Oct
80°
54°
Nov
65°
45°
Dec
61°
45°

Which forecast is most accurate in Santa Rosa?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
96
/100rank #1
91±0.9°F98±0.7 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
93
/100rank #2
87±1.3°F94±1.7 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA

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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±4°74° to 78°models agree0% to 0% chance
Tomorrow±5°76° to 81°models agree0% to 0% chance
Mon±5°82° to 87°models agree0% to 0% chance
Tue±8°86° to 94°±1%0% to 1% chance
Wed±12°89° to 101°±2%2% to 4% 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 Santa Rosa

today, local time
Sunrise
06:44
Sunset
19:34
Daylight
12h 50m

Common questions

What's the weather in Santa Rosa today?
On this page we show what NWS, American, European each forecast for Santa Rosa 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 Santa Rosa today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Santa Rosa 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 Santa Rosa?
Over the last 30 days, the European model has been the most accurate for Santa Rosa (CheckWeather Score 96/100), ahead of the American at 93. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Santa Rosa?
July is typically the warmest month in Santa Rosa, with average highs around 89°F.
How cold does Santa Rosa get?
The coldest month in Santa Rosa is February, when overnight lows average about 41°F.
How much rain does Santa Rosa get?
Santa Rosa sees roughly 42 in of precipitation a year, with January usually the wettest month.

Nearby

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