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.

Clear

63°F

17°C

Humidity 82%
Wind Speed WSW 8 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Aug 12:35 AM PDT
Extended Forecast for

5 Miles SSE Lake Berryessa CA

  • Overnight

    Overnight: Partly cloudy, with a low around 62. West wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Southwest wind 3 to 7 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90. West southwest wind 5 to 9 mph.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. West southwest wind 6 to 11 mph becoming light  in the evening.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. West wind around 6 mph.
Sunday
Mostly sunny, with a high near 95. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61. Southwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 90. West southwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 58. West southwest wind 6 to 11 mph becoming light in the evening.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Lake Berryessa CA
 38.51°N 122.23°W (Elev. 1220 ft)
11:27 pm PDT Aug 22, 2026
12am PDT Aug 23, 2026-6pm PDT Aug 29, 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