Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

59°F

15°C

Humidity 77%
Wind Speed SW 5 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Mar 10:35 AM PDT
Extended Forecast for

5 Miles SSW Lake Berryessa CA

  • Today

    Today: Sunny, with a high near 77. North wind around 6 mph becoming west in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Light and variable wind becoming north 5 to 9 mph in the evening. Winds could gust as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. North wind around 10 mph, with gusts as high as 23 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. North northwest wind around 6 mph.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87. North wind around 6 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. North wind around 6 mph becoming west in the afternoon.
Tonight
Mostly clear, with a low around 55. Light and variable wind becoming north 5 to 9 mph in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 83. North wind around 10 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 58. North northwest wind around 6 mph.
Monday
Sunny, with a high near 87. North wind around 6 mph.
Monday Night
Clear, with a low around 61.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 61.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 91.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
1:28 am PDT Mar 14, 2026
10am PDT Mar 14, 2026-6pm PDT Mar 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database