Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. 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 76%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 Mar 10:00 PM PDT
Extended Forecast for

7 Miles SSE Lake Berryessa CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. Northwest wind around 6 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. West southwest wind 3 to 5 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. West wind 3 to 7 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Northwest wind around 6 mph.
Sunday
Sunny, with a high near 79. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 52. West southwest wind 3 to 5 mph.
Monday
Sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 53. West wind 3 to 7 mph.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 78.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Lake Berryessa CA
 38.48°N 122.22°W (Elev. 1798 ft)
8:26 pm PDT Mar 21, 2026
10pm PDT Mar 21, 2026-6pm PDT Mar 28, 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