Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

55°F

13°C

Humidity 62%
Wind Speed SSE 5 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 18 Apr 09:20 PM PDT
Extended Forecast for

3 Miles ESE Guerneville CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 68. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 68 °F

    Gradual
    Clearing

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly after 2am.  Mostly cloudy, with a low around 49. Light and variable wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: Rain.  High near 60. South wind 3 to 7 mph. Winds could gust as high as 18 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Patchy fog before 2am, then patchy fog after 3am. Low around 49. South wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am.  Patchy fog before 8am. High near 61. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am.  Mostly sunny, with a high near 65.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. Calm wind.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 68. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
A 40 percent chance of rain, mainly after 2am. Mostly cloudy, with a low around 49. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain. High near 60. South wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Rain. Patchy fog before 2am, then patchy fog after 3am. Low around 49. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. Patchy fog before 8am. High near 61. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Wednesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 70.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Guerneville CA
 38.5°N 122.95°W (Elev. 79 ft)
8:46 pm PDT Apr 18, 2026
9pm PDT Apr 18, 2026-6pm PDT Apr 25, 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