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

66°F

19°C

Humidity 68%
Wind Speed SW 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 16 Mar 10:35 AM PDT
Extended Forecast for

4 Miles N Sonoma 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

  • Today

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. North wind 3 to 6 mph.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. North northeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62. West wind around 6 mph becoming north after midnight.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. North northeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 80. North wind around 6 mph.
Tonight
Clear, with a low around 62. North wind 3 to 6 mph.
Tuesday
Sunny, with a high near 81. North northeast wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Clear, with a low around 62. West wind around 6 mph becoming north after midnight.
Wednesday
Sunny, with a high near 82. North northeast wind around 6 mph becoming light and variable in the afternoon.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 82.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sonoma CA
 38.36°N 122.45°W (Elev. 1818 ft)
8:08 am PDT Mar 16, 2026
10am PDT Mar 16, 2026-6pm PDT Mar 22, 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