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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Fog

37°F

3°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 37°F (3°C)
Visibility 0.25 mi
Last update 27 Dec 03:55 AM PST
Extended Forecast for

4 Miles W Saint Helena CA

  • Today

    Today: Sunny, with a steady temperature around 44. West northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 45. North northwest wind around 6 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 50. North northeast wind 3 to 5 mph.

    High: 50 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. North northeast wind 5 to 7 mph.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53. North northeast wind 3 to 7 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Today
Sunny, with a steady temperature around 44. West northwest wind around 6 mph becoming light and variable in the afternoon.
Tonight
Increasing clouds, with a steady temperature around 45. North northwest wind around 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 50. North northeast wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 42. North northeast wind 5 to 7 mph.
Monday
Sunny, with a high near 53. North northeast wind 3 to 7 mph.
Monday Night
Clear, with a low around 42.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 53.
Wednesday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 45.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 51.
Thursday Night
Rain likely. Mostly cloudy, with a low around 47.
Friday
A chance of rain. Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Saint Helena CA
 38.52°N 122.55°W (Elev. 1998 ft)
Last Update:
12:27 am PST Dec 27, 2025
Forecast Valid:
4am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation