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.

Mist

49°F

9°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 49°F (9°C)
Visibility 1.00 mi
Last update 15 Mar 02:54 AM PDT
Extended Forecast for

7 Miles NE Yountville CA

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

    Overnight: Clear, with a low around 56. North wind around 11 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. North wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. North wind 7 to 9 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. North wind 6 to 8 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. West northwest wind around 6 mph.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

Overnight
Clear, with a low around 56. North wind around 11 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 80. North wind 9 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 62. North wind 7 to 9 mph.
Monday
Sunny, with a high near 85. North wind 6 to 8 mph.
Monday Night
Clear, with a low around 63. West northwest wind around 6 mph.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Clear, with a low around 65.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 87.
Thursday Night
Clear, with a low around 66.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Yountville CA
 38.45°N 122.27°W (Elev. 1998 ft)
2:40 am PDT Mar 15, 2026
3am 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