Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

81°F

27°C

Humidity 42%
Wind Speed SW 3 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 Mar 05:00 PM PDT
Extended Forecast for

2 Miles SSW Lake Berryessa CA

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

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. Light and variable wind.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Light and variable wind becoming north northeast around 5 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 64. Light and variable wind.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Light and variable wind becoming north northeast around 5 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Light north wind.
Tonight
Clear, with a low around 64. Light and variable wind.
Tuesday
Sunny, with a high near 88. Light and variable wind becoming north northeast around 5 mph.
Tuesday Night
Clear, with a low around 64. Light and variable wind.
Wednesday
Sunny, with a high near 88. Light and variable wind becoming north northeast around 5 mph.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 73.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Lake Berryessa CA
 38.54°N 122.26°W (Elev. 1824 ft)
1:25 pm PDT Mar 16, 2026
5pm PDT Mar 16, 2026-6pm PDT Mar 23, 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