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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

68°F

20°C

Humidity 60%
Wind Speed SSE 6 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Aug 10:35 AM PDT
Extended Forecast for

3 Miles W Guerneville CA

  • Today

    Today: Sunny, with a high near 77. Light west wind increasing to 5 to 10 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 51. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 50. West wind 5 to 7 mph becoming calm in the evening.

    Low: 50 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Light west wind increasing to 5 to 10 mph in the afternoon.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 51. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Clear, with a low around 50. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 81. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 53.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Guerneville CA
 38.51°N 123.04°W (Elev. 558 ft)
Last Update:
2:33 am PDT Aug 17, 2025
Forecast Valid:
10am PDT Aug 17, 2025-6pm PDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation