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

Snow Squalls in the Northeast U.S. on Thursday; Heavy Rain Along the Gulf Coast

An arctic cold front will move through the Great Lakes and Northeast on Thursday, bringing moderate to heavy snow, strong winds, and possible whiteout conditions through Thursday afternoon. A storm system interacting with Gulf moisture will bring moderate to heavy rainfall to the western and central Gulf Coast on Thursday. Isolated instances of flash flooding will be possible. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

41°F

5°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 03 Dec 11:35 PM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory December 3, 11:52pm until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 3, 11:52pm until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Tonight

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. Light south wind.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Light and variable wind.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Areas of fog after 1am. Otherwise, mostly clear, with a low around 43. Light and variable wind.

    Low: 43 °F

    Mostly Clear
    then Areas
    Fog

  • Saturday

    Saturday: Patchy fog before noon. Otherwise, mostly sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Areas of fog. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Areas Fog

  • Sunday

    Sunday: Areas of fog before noon. Otherwise, partly sunny, with a high near 61.

    High: 61 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 39. Light west wind.
Thursday
Sunny, with a high near 59. Light and variable wind.
Thursday Night
Mostly clear, with a low around 41. Light south wind.
Friday
Sunny, with a high near 62. Light and variable wind.
Friday Night
Areas of fog after 1am. Otherwise, mostly clear, with a low around 43. Light and variable wind.
Saturday
Patchy fog before noon. Otherwise, mostly sunny, with a high near 62.
Saturday Night
Areas of fog. Otherwise, partly cloudy, with a low around 44.
Sunday
Areas of fog before noon. Otherwise, partly sunny, with a high near 61.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 44.
Monday
Patchy fog before noon. Otherwise, mostly sunny, with a high near 63.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 64.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Wednesday
Patchy fog. Otherwise, partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.31°N 122.29°W (Elev. 30 ft)
Last Update:
12:26 pm PST Dec 3, 2025
Forecast Valid:
11pm PST Dec 3, 2025-6pm PST Dec 10, 2025
 
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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