Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Rain

57°F

14°C

Humidity 82%
Wind Speed S 10 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 52°F (11°C)
Visibility 4.00 mi
Last update 11 Apr 03:20 PM PDT
Extended Forecast for

Guerneville CA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm.  High near 59. South wind around 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am.  Low around 45. South southwest wind around 6 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    Showers

  • Sunday

    Sunday: Showers and thunderstorms before 2pm, then a chance of showers.  High near 59. West southwest wind 5 to 8 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 11pm.  Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 42. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 42 °F

    Chance
    Showers then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 65. Calm wind becoming west around 6 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 59. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 45. South southwest wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and thunderstorms before 2pm, then a chance of showers. High near 59. West southwest wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers before 11pm. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 42. West wind 5 to 7 mph becoming calm in the evening.
Monday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 71.
Thursday Night
Clear, with a low around 45.
Friday
Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
1:26 pm PDT Apr 11, 2026
3pm PDT Apr 11, 2026-6pm PDT Apr 18, 2026
 
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Additional Resources

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