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

Heavy Snow in the Central/Southern Rockies; Below Average Temperatures in the Central and Eastern US

Moderate to heavy snowfall is expected in the central/southern Rockies and adjacent High Plains today. Lake-enhanced snowfall is expected downwind of the Great Lakes today. Showers and thunderstorms will be possible this evening into tonight across the western Gulf Coast states. Temperatures across much of the central and eastern CONUS will remain below average and chilly to end the week. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

66°F

19°C

Humidity 24%
Wind Speed N 4 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 03 Dec 02:00 PM PST
Extended Forecast for

4 Miles SW Napa CA

Coastal Flood Advisory December 3, 02:16pm until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 3, 02:16pm until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • This Afternoon

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Calm wind becoming north northwest around 6 mph after midnight.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 60. North wind around 6 mph becoming light and variable in the afternoon.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. West northwest wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog between 10pm and 1am. Otherwise, mostly clear, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog between 7am and 10am. Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Saturday Night

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

    Low: 44 °F

    Patchy Fog

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 63. North northeast wind around 17 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around 38. Calm wind becoming north northwest around 6 mph after midnight.
Thursday
Sunny, with a high near 60. North wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Mostly clear, with a low around 40. West northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 63. Light and variable wind.
Friday Night
Patchy fog between 10pm and 1am. Otherwise, mostly clear, with a low around 43.
Saturday
Patchy fog between 7am and 10am. Otherwise, mostly sunny, with a high near 63.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Sunday
Areas of fog before noon. Otherwise, partly sunny, with a high near 62.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 43.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 63.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 43.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Napa CA
 38.26°N 122.36°W (Elev. 98 ft)
Last Update:
12:26 pm PST Dec 3, 2025
Forecast Valid:
2pm PST Dec 3, 2025-6pm PST Dec 9, 2025
 
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Additional Resources

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Chance of Precipitation