Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. 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 W 5 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 05 Aug 10:35 AM PDT
Extended Forecast for

4 Miles E Saint Helena CA

  • Today

    Today: Sunny, with a high near 91. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after midnight.  Otherwise, increasing clouds, with a low around 51. Light and variable wind.

    Low: 51 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 93 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 54. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Friday

    Friday: Sunny and hot, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 96 °F

    Hot

  • Friday Night

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

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 91. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 51. Light and variable wind.
Thursday
Areas of fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 54. West southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 55.
Monday
Areas of fog. Otherwise, mostly sunny, with a high near 90.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 53.
Tuesday
Areas of fog. Otherwise, mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
5:21 am PDT Aug 5, 2026
10am PDT Aug 5, 2026-6pm PDT Aug 11, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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