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

54°F

12°C

Humidity 87%
Wind Speed N 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 15 Mar 01:00 AM PDT
Extended Forecast for

2 Miles NNW Napa CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 50. Calm wind.
Sunday
Sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 55. Calm wind.
Monday
Sunny, with a high near 88. Calm wind.
Monday Night
Clear, with a low around 56. Calm wind.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 92.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Napa CA
 38.31°N 122.32°W (Elev. 98 ft)
1:26 am PDT Mar 15, 2026
1am PDT Mar 15, 2026-6pm PDT Mar 21, 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