Skip to main content
One weather site to rule them all
checkweather.io
CheckWeather USSanta Rosa
Forecast confidence: High · models disagree by 3°F

Santa Rosa weather

Loading live data…

Fog,much the same tomorrow

NWS, the American and the European model agree on a high near 81° in Santa Rosa today. Tomorrow looks cloudy around 84°, with a 0% chance of rain.

81°52°
84°53°
77°54°
79°56°
82°56°
91°58°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±7°Mondaysplit ±9°Tuesdaysplit ±8°Wednesdaysplit ±7°
NWSNational Blend (NBM)
80°
Fog
Today 80°·Low 53°·Rain 0%
AmericanNOAA GFS
81°
Fog
Today 81°·Low 49°·Rain 0%
EuropeanECMWF
83°
Clear
Today 83°·Low 54°·Rain 0%
CheckWeather.io on iPhoneFree. No ads, no account.

Santa Rosa weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Santa Rosa…

Santa Rosa weather in numbers

from 30 years of measured normals

Santa Rosa swings 48°F across the year, from 89°F highs in July to 41°F lows in February, and January is usually the wettest month in a year that brings about 42 in of precipitation.

Warmest month
July
89°F average high
Coldest month
February
41°F average low
Wettest month
January
42 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
April, May, November and December
Residents
178,000
share this forecast

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…

Santa Rosa 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

Loading the three models…

Santa Rosa 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Fog
81° 52°
models agree
Tomorrow
Cloudy
84° 53°
models agree
Sun
Cloudy
77° 54°
±7°
Mon
Cloudy
79° 56°
±9°
Tue
Cloudy
82° 56°
±8°
Wed
Mostly clear
91° 58°
±7°
Thu
Mostly clear
89° 63°
±7°
Fri
Mostly clear
80° 59°
±15°
Sat
Partly cloudy
79° 59°
±21°
Sun
Partly cloudy
80° 57°
±16°
Mon
Partly cloudy
82° 57°
±14°
Tue
Drizzle
82° 58°
±6°
Wed
Cloudy
82° 56°
±16°
Thu
Clear
81° 57°
±10°

Santa Rosa, California (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-scoreTempWindRainRun by
European logo
European ★ Best
94
/100rank #1
92±0.8°F97±1.0 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
88
/100rank #2
81±1.9°F96±1.3 mph8994% 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.

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)
Loading ratings…
AmericanNOAA GFS
Loading ratings…
EuropeanECMWF
Loading ratings…

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±3°80° to 83°models agree0% to 0% chance
Tomorrow±3°82° to 85°models agree0% to 0% chance
Sun±7°74° to 81°models agree0% to 0% chance
Mon±9°76° to 85°models agree0% to 0% chance
Tue±8°79° to 86°models agree0% to 0% 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
06:55
Sunset
19:13
Daylight
12h 18m

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 94/100), ahead of the American at 88. 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

More US weather