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

Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

60°F

16°C

Humidity 64%
Wind Speed E 10 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 13 Jan 03:54 PM PST
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Northeast wind 3 to 5 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Northeast wind 3 to 7 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43. Northeast wind around 5 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 40. Calm wind.
Wednesday
Sunny, with a high near 64. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 42. Northeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 64. Northeast wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 43. Northeast wind around 5 mph.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 63.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
M.L.King Day
Patchy fog. Otherwise, mostly sunny, with a high near 62.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Tuesday
Areas of fog. Otherwise, mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
12:26 pm PST Jan 13, 2026
Forecast Valid:
4pm PST Jan 13, 2026-6pm PST Jan 20, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation