National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

77°F

25°C

Humidity 47%
Wind Speed SSE 10 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 14 Aug 06:20 PM PDT
Extended Forecast for

Guerneville CA

  • Tonight

    Tonight: Clear, with a low around 60. West wind 6 to 10 mph.

    Low: 60 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. West northwest wind 5 to 10 mph becoming northwest 11 to 16 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. West northwest wind 9 to 14 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Northwest wind 8 to 15 mph, with gusts as high as 18 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. West wind 8 to 14 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 51.

    Low: 51 °F

    Clear then
    Patchy Fog

  • Monday

    Monday: Patchy fog before 7am. Otherwise, sunny, with a high near 77.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 60. West wind 6 to 10 mph.
Friday
Sunny, with a high near 88. West northwest wind 5 to 10 mph becoming northwest 11 to 16 mph in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Mostly clear, with a low around 61. West northwest wind 9 to 14 mph.
Saturday
Sunny, with a high near 82. Northwest wind 8 to 15 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 56. West wind 8 to 14 mph.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 51.
Monday
Patchy fog before 7am. Otherwise, sunny, with a high near 77.
Monday Night
Clear, with a low around 51.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Clear, with a low around 54.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 56.
Thursday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.5°N 122.98°W (Elev. 397 ft)
Last Update:
1:25 pm PDT Aug 14, 2025
Forecast Valid:
6pm PDT Aug 14, 2025-6pm PDT Aug 21, 2025
 
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Additional Resources

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