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

Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. 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. this week. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

61°F

16°C

Humidity 87%
Wind Speed SSW 3 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 03 Sep 01:35 AM PDT
Extended Forecast for

Santa Rosa CA

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of dense fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Areas Dense
    Fog then
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 54. South southwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 79.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 55. Calm wind.
Wednesday
Areas of dense fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 54. South southwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 79.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 54.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 80.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 54.
Sunday
Areas of fog before 9am. Otherwise, sunny, with a high near 80.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 54.
Monday
Areas of fog. Otherwise, sunny, with a high near 80.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 55.
Tuesday
Areas of fog. Otherwise, mostly sunny, with a high near 79.
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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 3, 2025
Forecast Valid:
1am PDT Sep 3, 2025-6pm PDT Sep 9, 2025
 
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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