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

Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. 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 WSW 3 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 37°F (3°C)
Visibility 0.50 mi
Last update 27 Dec 11:00 PM PST
Extended Forecast for

3 Miles SE Calistoga CA

  • Tonight

    Tonight: Patchy frost after 3am. Otherwise, partly cloudy, with a steady temperature around 39. Calm wind.

    Low: 39 °F

    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 7am. Otherwise, sunny, with a high near 54. Calm wind.

    High: 54 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Light north northeast wind.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. Light northeast wind.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog between 10am and 11am. Otherwise, partly sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Tonight
Patchy frost after 3am. Otherwise, partly cloudy, with a steady temperature around 39. Calm wind.
Sunday
Patchy frost before 7am. Otherwise, sunny, with a high near 54. Calm wind.
Sunday Night
Mostly clear, with a low around 39. Light north northeast wind.
Monday
Sunny, with a high near 56. Light northeast wind.
Monday Night
Clear, with a low around 38. Calm wind.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Patchy fog between 10am and 11am. Otherwise, partly sunny, with a high near 56.
Wednesday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 42.
New Year's Day
Rain likely, mainly after 10am. Areas of fog. Otherwise, mostly cloudy, with a high near 53.
Thursday Night
Rain likely. Areas of fog. Otherwise, mostly cloudy, with a low around 44.
Friday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 52.
Friday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 42.
Saturday
A chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Calistoga CA
 38.55°N 122.53°W (Elev. 715 ft)
Last Update:
12:27 pm PST Dec 27, 2025
Forecast Valid:
11pm PST Dec 27, 2025-6pm PST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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