Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest

Severe thunderstorms will be possible from the central Plains to the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Interior Alaska and the Four Corners region through Monday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Overcast

55°F

13°C

Humidity 87%
Wind Speed SE 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 52°F (11°C)
Visibility 8.00 mi
Last update 22 Jun 03:05 AM PDT
Extended Forecast for

Guerneville CA

  • Overnight

    Overnight: Patchy fog.  Otherwise, mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Patchy Fog

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 78 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 51. Light and variable wind.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 78 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 51. Calm wind.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 51. Light and variable wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 52. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
1:26 am PDT Jun 22, 2026
3am PDT Jun 22, 2026-6pm PDT Jun 28, 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