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

Heavy Rain in the Ohio and Tennessee Valleys; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. One tropical wave will bring periods of heavy rain, thunderstorms, flood risk, and landslides to Puerto Rico and the US Virgin Islands through Friday morning. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Mostly Cloudy

71°F

22°C

Humidity 65%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Sep 01:53 PM PDT
Extended Forecast for

Santa Rosa CASimilar City Names

  • This Afternoon

    This Afternoon: A 10 percent chance of showers after 5pm. Partly sunny, with a steady temperature around 79. Southwest wind around 7 mph.

    High: 79 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 58. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog before 1am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 54.

    Low: 54 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 11am. Otherwise, partly sunny, with a high near 72.

    High: 72 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers after 5pm. Partly sunny, with a steady temperature around 79. Southwest wind around 7 mph.
Tonight
A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 58. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Patchy fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 79.
Saturday Night
Patchy fog before 1am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 54.
Sunday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 72.
Sunday Night
A slight chance of showers and thunderstorms after 11pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 54.
Monday
A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a high near 72.
Monday Night
A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 54.
Tuesday
A chance of showers and thunderstorms. Patchy fog. Otherwise, partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa CASimilar City Names
 38.45°N 122.7°W (Elev. 190 ft)
Last Update:
2:10 am PDT Sep 24, 2025
Forecast Valid:
2pm PDT Sep 24, 2025-6pm PDT Sep 30, 2025
 
Forecast Discussion
 
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Additional Resources

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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