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

55°F

13°C

Humidity 76%
Wind Speed SSW 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 14 Mar 10:00 AM PDT
Extended Forecast for

Napa CA

  • Today

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

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Calm wind becoming north around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87. Calm wind.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 78. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 51. Light and variable wind.
Sunday
Sunny, with a high near 85. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 87. Calm wind.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 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

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database