National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

57°F

14°C

Humidity 93%
Wind Speed W 11 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 27 Jun 05:00 AM PDT
Extended Forecast for

4 Miles E Saint Helena CA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 77. West wind 3 to 7 mph.

    High: 77 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Calm wind becoming north around 5 mph in the morning.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. West wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Monday

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

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Clear then
    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Areas of fog after 3am. Otherwise, mostly clear, with a low around 50.

    Low: 50 °F

    Clear then
    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 80.

    High: 80 °F

    Areas Fog
    then Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 77. West wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 50. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 82. Calm wind becoming north around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 54. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 86. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Areas of fog after 3am. Otherwise, mostly clear, with a low around 50.
Wednesday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 80.
Wednesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 50.
Thursday
Areas of fog. Otherwise, mostly sunny, with a high near 76.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 50.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Saint Helena CA
 38.5°N 122.4°W (Elev. 476 ft)
Last Update:
1:26 am PDT Jun 27, 2026
Forecast Valid:
5am PDT Jun 27, 2026-6pm PDT Jul 3, 2026
 
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Additional Resources

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