Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

light rain,mist

50°F

10°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Last update 01 Jan 03:55 AM PST
Extended Forecast for

Guerneville CA

Coastal Flood Advisory January 1, 04:18am until January 4, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory January 1, 04:18am until January 4, 02:00pm

    NOW until 2:00pm Sun

    Coastal Flood Advisory

  • Overnight

    Low: 49 °F

    Showers

  • New Year's Day

    New Year's Day: Showers.  High near 56. South wind 5 to 10 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Thursday Night

    Thursday Night: Showers.  Low around 51. Southeast wind 5 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Showers

  • Friday

    Friday: Showers.  High near 55. Southeast wind 6 to 13 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: Showers, with thunderstorms also possible after 10pm.  Low around 52. South wind 10 to 13 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 10am.  High near 56. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 51. Chance of precipitation is 100%.

    Low: 51 °F

    Showers

  • Sunday

    Sunday: Showers.  Cloudy, with a high near 54.

    High: 54 °F

    Showers

Detailed Forecast

Overnight
Showers. Low around 49. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
New Year's Day
Showers. High near 56. South wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers. Low around 51. Southeast wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers. High near 55. Southeast wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers, with thunderstorms also possible after 10pm. Low around 52. South wind 10 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers, with thunderstorms also possible after 10am. High near 56. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 100%.
Sunday
Showers. Cloudy, with a high near 54.
Sunday Night
Showers, with thunderstorms also possible after 10pm. Cloudy, with a low around 48.
Monday
Showers. Mostly cloudy, with a high near 53.
Monday Night
Showers likely. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Tuesday
A chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 55.
Tuesday Night
A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 41.
Wednesday
A chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Guerneville CA
 38.49°N 123°W (Elev. 197 ft)
1:25 am PST Jan 1, 2026
4am PST Jan 1, 2026-6pm PST Jan 7, 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