Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

88°F

31°C

Humidity 12%
Wind Speed NNW 11 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 19 May 03:54 PM PDT
Extended Forecast for

2 Miles NNW Napa CA

  • Tonight

    Tonight: Mostly clear, with a low around 54. West wind 5 to 8 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, mostly clear, with a low around 49.

    Low: 49 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 74.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 54. West wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 52. Southwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 51. Southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny, with a high near 80.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 49.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 49.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 76.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 48.
Memorial Day
Patchy fog. Otherwise, mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Napa CA
 38.31°N 122.32°W (Elev. 98 ft)
2:42 pm PDT May 19, 2026
4pm PDT May 19, 2026-6pm PDT May 26, 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