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

63°F

17°C

Humidity 70%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 16 Mar 09:54 AM PDT
Extended Forecast for

3 Miles SW Napa 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: 86 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Clear, with a low around 56. Light and variable wind.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Clear, with a low around 56. Light and variable wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 59.
Friday
Sunny, with a high near 90.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Napa CA
 38.26°N 122.34°W (Elev. 157 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

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Hourly Weather Forecast

National Digital Forecast Database