Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. 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 93%
Wind Speed SE 6 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 Jun 12:20 AM PDT
Extended Forecast for

2 Miles NNW Guerneville CA

  • Overnight

    Overnight: Patchy fog before 3am, then patchy fog after 4am.  Otherwise, partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 7am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog between 2am and 3am.  Otherwise, mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight.  Otherwise, mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between 3am and 4am.  Otherwise, mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Overnight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 53. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
Patchy fog between 2am and 3am. Otherwise, mostly clear, with a low around 52. Calm wind.
Monday
Sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 53. Light and variable wind.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Patchy fog between 3am and 4am. Otherwise, mostly clear, with a low around 55.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Guerneville CA
 38.54°N 123.01°W (Elev. 548 ft)
12:26 am PDT Jun 21, 2026
12am PDT Jun 21, 2026-6pm PDT Jun 27, 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