California · NWS MTR office

Windsor, CA weather

It is 54°F and clear at Santa Rosa, Santa Rosa Sonoma County Airport as of Oct 27, 11:00 PM PDT. Tonight: Mostly Clear then Patchy Fog, low near 40°F. Forecast from the National Weather Service, issued Oct 27, 3:07 PM PDT.

Updated Oct 27, 11:29 PM PDT (snapshot)

Current conditions

Temperature

54°F

Clear

Wind

NNE 9 mph

Humidity 67% · dew point 43°F

Pressure · visibility

30.02 inHg

Visibility 10 mi

Observed at Santa Rosa, Santa Rosa Sonoma County Airport (KSTS), Oct 27, 11:00 PM PDT. Station readings can lag or be missing.

Alerts for this area

Coastal Flood Advisory Minor Expected

Coastal Flood Advisory issued October 27 at 3:11PM PDT until October 30 at 5:00PM PDT by NWS San Francisco CA

Area
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
In effect
Oct 27, 3:11 PM PDT
Until
Oct 30, 5:00 PM PDT
Issued by
NWS San Francisco CA
Full text

* WHAT...Up to 2.1 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Pablo Bay, San Francisco Bay, and Monterey Bay. * WHEN...Until 5 PM PDT Friday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. More substantial impacts are expected along bayshore Marin County where increased flooding is anticipated across low lying areas. * ADDITIONAL DETAILS...At the San Francisco tidal gauge, high tide is expected to be 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM Wednesday 10/28, 1.7 ft above normal (7.5 ft MLLW) at 01:43 PM Thursday 10/29, and 1.6 ft above normal (7.4 ft MLLW) at 02:39 PM Friday 10/30. These predictions include up to 1.2 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

What to do: If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Around the NWS MTR forecast area

2 active alerts cover zones served by the MTR office near Windsor:

  • Coastal Flood Advisory (2)

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. California has 8 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Windsor (local time)
TimeTempForecastPrecip. chanceWind
Tue 11 PM48°FMostly Clear0%N 5 mph
Wed 12 AM47°FMostly Clear0%N 5 mph
Wed 1 AM46°FMostly Clear0%N 3 mph
Wed 2 AM44°FMostly Clear0%N 3 mph
Wed 3 AM43°FPartly Cloudy0%N 2 mph
Wed 4 AM42°FPatchy Fog0%N 2 mph
Wed 5 AM40°FPatchy Fog0%N 2 mph
Wed 6 AM41°FMostly Sunny0%N 2 mph
Wed 7 AM40°FMostly Sunny0%N 2 mph
Wed 8 AM40°FSunny0%N 2 mph
Wed 9 AM46°FPatchy Fog0%N 1 mph
Wed 10 AM52°FSunny0%NNW 1 mph
Wed 11 AM58°FSunny0% 0 mph
Wed 12 PM64°FSunny0%W 1 mph
Wed 1 PM67°FSunny0%WSW 2 mph
Wed 2 PM69°FSunny0%SW 2 mph
Wed 3 PM71°FSunny0%SW 2 mph
Wed 4 PM70°FSunny0%SW 3 mph
Wed 5 PM68°FSunny0%SSW 2 mph
Wed 6 PM64°FMostly Clear0%SSW 2 mph
Wed 7 PM58°FMostly Clear0%SSW 2 mph
Wed 8 PM55°FPartly Cloudy0% 0 mph
Wed 9 PM53°FPartly Cloudy0% 0 mph
Wed 10 PM51°FPartly Cloudy0% 0 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Windsor can differ.

7-day forecast

Tonight

Low 40°F

Patchy fog after 4am. Mostly clear, with a low around 40. North wind around 5 mph.

Wednesday

High 71°F·Low 42°F

Patchy fog between 9am and 10am. Sunny. High near 71, with temperatures falling to around 68 in the afternoon. West northwest wind 0 to 3 mph.

Wednesday Night: Areas of fog after 11pm. Partly cloudy, with a low around 42. North wind around 2 mph.

Thursday

High 67°F·Low 40°F

Areas of fog before 9am. Mostly cloudy, with a high near 67. South southeast wind around 3 mph.

Thursday Night: Patchy fog after 11pm. Mostly cloudy, with a low around 40. West wind 0 to 3 mph.

Friday

High 66°F·Low 38°F

Patchy fog before 8am. Sunny, with a high near 66.

Friday Night: Areas of fog after 2am. Mostly cloudy, with a low around 38.

Saturday

High 63°F·Low 38°F

Areas of fog before 10am, then a chance of rain. Mostly cloudy, with a high near 63.

Saturday Night: A chance of rain before 10pm, then a chance of rain and patchy fog between 10pm and 4am. Partly cloudy, with a low around 38.

Sunday

High 68°F·Low 39°F

Sunny, with a high near 68.

Sunday Night: Mostly clear, with a low around 39.

Monday

High 71°F·Low 42°F

Mostly sunny, with a high near 71.

Monday Night: A slight chance of rain after 4am. Mostly cloudy, with a low around 42.

Tuesday

High 69°F

A chance of rain before 5pm. Partly sunny, with a high near 69.

Nearby cities

Larger cities in the area

Other cities in Sonoma County

See every city we cover in California, or check all active alerts.

About this forecast

Forecast office
Windsor is served by the National Weather Service MTR forecast office, forecast zone CAZ506, county zone CAC097.
Location used
The Census Bureau's internal point for Windsor (38.5421, -122.8086), in Sonoma County. Population: 25,846 (2024 estimate), number 266 of the 296 California cities on this site.
Radar
Nearest NWS radar: KDAX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/38.5421,-122.8086 (forecast issued Oct 27, 3:07 PM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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