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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Clear

59°F

15°C

Humidity 41%
Wind Speed N 6 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 16 Apr 10:35 AM PDT
Extended Forecast for

Guerneville CA

  • Today

    Today: Sunny, with a high near 70. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. North northwest wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 71. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. West southwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 11am. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Rain Likely

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 64.

    High: 64 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 70. Calm wind becoming north northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 46. North northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 71. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 47. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 73. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
A 30 percent chance of rain after 11am. Mostly cloudy, with a high near 67.
Sunday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 50.
Monday
Rain likely. Mostly cloudy, with a high near 64.
Monday Night
Rain likely. Mostly cloudy, with a low around 50.
Tuesday
Rain likely. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.52°N 122.98°W (Elev. 95 ft)
Last Update:
10:41 am PDT Apr 16, 2026
Forecast Valid:
10am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation