Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

64°F

18°C

Humidity 63%
Wind Speed SSW 4 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Mar 11:20 AM PDT
Extended Forecast for

8 Miles WNW Vacaville CA

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

    Today: Sunny, with a high near 79. North wind 9 to 14 mph, with gusts as high as 26 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. North wind around 8 mph, with gusts as high as 18 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83. North wind 6 to 8 mph.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 61. North northwest wind around 5 mph becoming light and variable  after midnight.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. Northeast wind 3 to 5 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 79. North wind 9 to 14 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 61. North wind around 8 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 83. North wind 6 to 8 mph.
Monday Night
Clear, with a low around 61. North northwest wind around 5 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 83. Northeast wind 3 to 5 mph.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Vacaville CA
 38.39°N 122.11°W (Elev. 1365 ft)
2:40 am PDT Mar 15, 2026
11am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database