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.

rain,mist

50°F

10°C

Humidity 100%
Wind Speed WNW 3 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Last update 31 Dec 09:20 PM PST
Extended Forecast for

5 Miles SSW Saint Helena CA

  • Tonight

    Tonight: Rain.  Low around 47. Northeast wind 8 to 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 47 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 54. East southeast wind 8 to 14 mph becoming south in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 1am.  Low around 51. South wind 9 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Rain

  • Friday

    Friday: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 55. South southeast wind 8 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain.  Low around 53. South wind 13 to 17 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 53 °F

    Rain

  • Saturday

    Saturday: Rain.  High near 56. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 51. Chance of precipitation is 90%.

    Low: 51 °F

    Showers

  • Sunday

    Sunday: Rain.  Cloudy, with a high near 53.

    High: 53 °F

    Rain

  • Sunday Night

    Sunday Night: Rain.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain

Detailed Forecast

Tonight
Rain. Low around 47. Northeast wind 8 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Rain. High near 54. East southeast wind 8 to 14 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before 1am. Low around 51. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 55. South southeast wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 53. South wind 13 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Saturday
Rain. High near 56. Chance of precipitation is 100%. New precipitation 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 90%.
Sunday
Rain. Cloudy, with a high near 53.
Sunday Night
Rain. Mostly cloudy, with a low around 49.
Monday
Rain. Mostly cloudy, with a high near 51.
Monday Night
Rain likely. Mostly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 50.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Saint Helena CA
 38.44°N 122.5°W (Elev. 1398 ft)
2:14 pm PST Dec 31, 2025
9pm PST Dec 31, 2025-6pm PST Jan 7, 2026
 
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Additional Resources

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