Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. 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 62%
Wind Speed E 10 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 29 Dec 02:35 PM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm
Cold Weather Advisory December 30, 01:00am until December 30, 09:00am
Click here for hazard details and duration
Coastal Flood Advisory
Cold Weather Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 59. Northeast wind around 5 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 36. Calm wind becoming east northeast around 6 mph after midnight.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog between 7am and 9am.  Otherwise, increasing clouds, with a high near 55. Light north northeast wind becoming east 5 to 9 mph in the morning.

    High: 55 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A 10 percent chance of rain after 4am.  Cloudy, with a low around 43. Northeast wind 3 to 5 mph.

    Low: 43 °F

    Cloudy then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain, mainly after 10am.  Cloudy, with a high near 51. Calm wind becoming east northeast around 5 mph in the afternoon.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain.  Patchy fog after 10pm. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain and
    Patchy Fog

  • New Year's Day

    New Year's Day: Rain.  Areas of fog before 10am. High near 53. Chance of precipitation is 90%.

    High: 53 °F

    Rain and
    Areas Fog

  • Thursday Night

    Thursday Night: Rain.  Patchy fog.  Otherwise, cloudy, with a low around 49.

    Low: 49 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain.  Cloudy, with a high near 55.

    High: 55 °F

    Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 59. Northeast wind around 5 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 36. Calm wind becoming east northeast around 6 mph after midnight.
Tuesday
Patchy fog between 7am and 9am. Otherwise, increasing clouds, with a high near 55. Light north northeast wind becoming east 5 to 9 mph in the morning.
Tuesday Night
A 10 percent chance of rain after 4am. Cloudy, with a low around 43. Northeast wind 3 to 5 mph.
Wednesday
A 50 percent chance of rain, mainly after 10am. Cloudy, with a high near 51. Calm wind becoming east northeast around 5 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Patchy fog after 10pm. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. Areas of fog before 10am. High near 53. Chance of precipitation is 90%.
Thursday Night
Rain. Patchy fog. Otherwise, cloudy, with a low around 49.
Friday
Rain. Cloudy, with a high near 55.
Friday Night
Rain. Cloudy, with a low around 45.
Saturday
Rain likely. Mostly cloudy, with a high near 53.
Saturday Night
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Sunday
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
12:27 pm PST Dec 29, 2025
2pm PST Dec 29, 2025-6pm PST Jan 4, 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