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

Significant Heat in the Northwest U.S.; Tropical Rainfall Potential in the Southwest U.S.

A significant late season heat wave continues in the interior Pacific Northwest for at least one more day before easing somewhat Friday into Saturday. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. through Saturday which may bring areas of flooding. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Partly Cloudy

76°F

24°C

Humidity 50%
Wind Speed SSW 8 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 04 Sep 03:53 PM PDT
Extended Forecast for

Santa Rosa CA

  • Tonight

    Tonight: Partly cloudy, with a low around 54. South southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 54. South wind 5 to 7 mph becoming calm in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 55. Southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 57.

    Low: 57 °F

    Patchy Fog

  • Monday

    Monday: A slight chance of drizzle. Areas of fog before 10am. Otherwise, partly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Drizzle and
    Areas Fog

  • Monday Night

    Monday Night: A slight chance of drizzle. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    Drizzle and
    Patchy Fog

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. South southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 54. South wind 5 to 7 mph becoming calm in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Saturday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 55. Southwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78.
Sunday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 57.
Monday
A slight chance of drizzle. Areas of fog before 10am. Otherwise, partly sunny, with a high near 77.
Monday Night
A slight chance of drizzle. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 55.
Tuesday
A chance of drizzle, mainly after 11am. Areas of fog before 10am. Otherwise, partly sunny, with a high near 76.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 54.
Wednesday
A slight chance of drizzle. Areas of fog. Otherwise, mostly sunny, with a high near 76.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 54.
Thursday
Areas of fog. Otherwise, mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa CA
 38.45°N 122.7°W (Elev. 190 ft)
Last Update:
1:37 pm PDT Sep 4, 2025
Forecast Valid:
4pm PDT Sep 4, 2025-6pm PDT Sep 11, 2025
 
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