Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. 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 30.15 in (1021.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 13 Mar 10:20 AM PDT
Extended Forecast for

5 Miles SSW Lake Berryessa CA

  • Today

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

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West southwest wind around 6 mph.

    Low: 51 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 77. Northwest wind around 6 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. West northwest wind 5 to 7 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83. North wind around 9 mph, with gusts as high as 18 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 76. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West southwest wind around 6 mph.
Saturday
Sunny, with a high near 77. Northwest wind around 6 mph.
Saturday Night
Mostly clear, with a low around 56. West northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 83. North wind around 9 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 88.
Monday Night
Clear, with a low around 61.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
1:26 am PDT Mar 13, 2026
10am PDT Mar 13, 2026-6pm PDT Mar 19, 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