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

66°F

19°C

Humidity 54%
Wind Speed SSE 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 13 Mar 12:54 PM PDT
Extended Forecast for

2 Miles SSW Lake Berryessa CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. Calm wind becoming west southwest around 5 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 53. West northwest wind around 6 mph.

    Low: 53 °F

    Gradual
    Clearing

  • 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 59. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83. North wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. Calm wind becoming west southwest around 5 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 53. West northwest wind around 6 mph.
Saturday
Sunny, with a high near 77. Northwest wind around 6 mph.
Saturday Night
Mostly clear, with a low around 59. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 83. North wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Sunny, with a high near 87.
Monday Night
Clear, with a low around 64.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 64.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lake Berryessa CA
 38.54°N 122.26°W (Elev. 1824 ft)
11:28 am PDT Mar 13, 2026
1pm PDT Mar 13, 2026-6pm PDT Mar 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database