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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

64°F

18°C

Humidity 72%
Wind Speed W 8 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 21 Aug 10:20 AM PDT
Extended Forecast for

3 Miles S Napa CA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 76. West southwest wind 7 to 10 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Tonight

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

    Low: 54 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 80. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 56. Southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 76. West southwest wind 7 to 10 mph.
Tonight
Increasing clouds, with a low around 54. West southwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 80. Light southwest wind increasing to 5 to 10 mph in the morning.
Saturday Night
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 56. Southwest wind 5 to 9 mph becoming calm in the evening.
Sunday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Partly sunny, with a high near 76.
Tuesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 54.
Wednesday
Patchy fog. Otherwise, partly sunny, with a high near 79.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 56.
Thursday
Patchy fog. Otherwise, partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Napa CA
 38.25°N 122.27°W (Elev. 59 ft)
Last Update:
2:16 am PDT Aug 21, 2026
Forecast Valid:
10am PDT Aug 21, 2026-6pm PDT Aug 27, 2026
 
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