Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

69°F

21°C

Humidity 52%
Wind Speed SSW 9 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Jun 01:54 PM PDT
Extended Forecast for

4 Miles SE Saint Helena CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 82. West southwest wind 6 to 8 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 47. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 47 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west southwest 5 to 9 mph in the morning.

    High: 84 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 2am.  Otherwise, increasing clouds, with a low around 46. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 82. West southwest wind 6 to 8 mph.
Tonight
Increasing clouds, with a low around 47. West southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west southwest 5 to 9 mph in the morning.
Sunday Night
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 46. West southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 52.
Juneteenth
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Saint Helena CA
 38.45°N 122.41°W (Elev. 157 ft)
1:26 pm PDT Jun 14, 2025
2pm PDT Jun 14, 2025-6pm PDT Jun 20, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database