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

Critical Fire Weather in the Plains; Unseasonably Warm in the Southwest and Southern U.S.

Unseasonably warm temperatures continue through the weekend across the Southwest and southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Elevated to critical fire weather conditions will persist across the Plains and Southeast U.S. this weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

70°F

21°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 28 Mar 07:20 PM PDT
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. West southwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 76. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 76 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of rain, mainly after 11am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 66.

    High: 66 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Calm wind.
Sunday
Sunny, with a high near 84. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 51. West southwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 76. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 48. West southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
A 30 percent chance of rain. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46.
Wednesday
A chance of rain, mainly after 11am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 66.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 43.
Thursday
A slight chance of rain before 11am. Sunny, with a high near 66.
Thursday Night
Clear, with a low around 43.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 47.
Saturday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
2:26 pm PDT Mar 28, 2026
Forecast Valid:
7pm PDT Mar 28, 2026-6pm PDT Apr 4, 2026
 
Forecast Discussion
 
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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