National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Fog

52°F

11°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 52°F (11°C)
Visibility 0.25 mi
Last update 19 Sep 07:53 AM PDT
Extended Forecast for

Santa Rosa CA

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 79. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 53. South southwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 81 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 52.

    Low: 52 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 82.

    High: 82 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Clear then
    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 89.

    High: 89 °F

    Areas Fog
    then Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 53. Calm wind.
Sunday
Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 79. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 53. South southwest wind around 5 mph becoming calm in the evening.
Monday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 52.
Tuesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 82.
Tuesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 53.
Wednesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa CA
 38.45°N 122.7°W (Elev. 190 ft)
Last Update:
1:26 am PDT Sep 19, 2026
Forecast Valid:
8am PDT Sep 19, 2026-6pm PDT Sep 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation