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

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Fog

37°F

3°C

Humidity 100%
Wind Speed N 5 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 37°F (3°C)
Visibility 0.25 mi
Wind Chill33°F (1°C)
Last update 27 Dec 05:55 AM PST
Extended Forecast for

4 Miles WSW Yountville CA

  • Today

    Today: Sunny, with a high near 50. Light north wind.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Light north northwest wind.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 52. Light north northeast wind.

    High: 52 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Calm wind becoming north northeast around 5 mph in the evening.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Northeast wind 3 to 6 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 50. Light north wind.
Tonight
Partly cloudy, with a low around 39. Light north northwest wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 52. Light north northeast wind.
Sunday Night
Mostly clear, with a low around 39. Calm wind becoming north northeast around 5 mph in the evening.
Monday
Sunny, with a high near 54. Northeast wind 3 to 6 mph.
Monday Night
Clear, with a low around 39.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 53.
Wednesday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 42.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 51.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 44.
Friday
A chance of rain. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Yountville CA
 38.38°N 122.42°W (Elev. 1030 ft)
12:27 am PST Dec 27, 2025
6am PST Dec 27, 2025-6pm PST Jan 2, 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