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

64°F

18°C

Humidity 42%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Apr 11:00 AM PDT
Extended Forecast for

3 Miles ESE Guerneville CA

  • Today

    Today: Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Tonight

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

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 11pm.  Mostly cloudy, with a low around 48. Southwest wind around 5 mph becoming calm  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Monday

    Monday: Showers.  High near 62. South wind 3 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Monday Night

    Monday Night: Showers.  Patchy fog after 3am. Low around 51. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 51 °F

    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  Patchy fog before 8am. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers.  Partly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 48. Calm wind.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
A 40 percent chance of showers after 11pm. Mostly cloudy, with a low around 48. Southwest wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers. High near 62. South wind 3 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Showers. Patchy fog after 3am. Low around 51. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. Patchy fog before 8am. High near 62. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 47.
Wednesday
A chance of showers. Partly 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 47.
Friday
Sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Guerneville CA
 38.5°N 122.95°W (Elev. 79 ft)
8:31 am PDT Apr 18, 2026
11am PDT Apr 18, 2026-6pm PDT Apr 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database