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.

Clear

55°F

13°C

Humidity 71%
Wind Speed SW 6 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 27 Dec 02:20 PM PST
Extended Forecast for

2 Miles NW Napa Co. Airport CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 53. North wind around 6 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. Calm wind.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 54. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 54 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 4am.  Otherwise, mostly clear, with a low around 36. Light northeast wind.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Areas of frost before 8am.  Otherwise, sunny, with a high near 53. East northeast wind 5 to 7 mph.

    High: 53 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 2am. Patchy frost after 4am.  Otherwise, mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Patchy frost before 8am.  Otherwise, sunny, with a high near 53.

    High: 53 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 37.

    Low: 37 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 53. North wind around 6 mph.
Tonight
Increasing clouds, with a low around 37. Calm wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 54. Calm wind becoming north northeast around 6 mph in the afternoon.
Sunday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. Light northeast wind.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 53. East northeast wind 5 to 7 mph.
Monday Night
Patchy fog after 2am. Patchy frost after 4am. Otherwise, mostly clear, with a low around 36.
Tuesday
Patchy fog before 7am. Patchy frost before 8am. Otherwise, sunny, with a high near 53.
Tuesday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 37.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 41.
New Year's Day
Rain likely. Patchy fog. Otherwise, cloudy, with a high near 52.
Thursday Night
Rain likely. Cloudy, with a low around 44.
Friday
A chance of rain. Mostly cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Napa Co. Airport CA
 38.22°N 122.3°W (Elev. 3 ft)
12:27 pm PST Dec 27, 2025
2pm PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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