Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

79°F

26°C

Humidity 50%
Wind Speed SSW 8 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 12:00 PM PDT
Extended Forecast for

3 Miles SSE Napa Co. Airport CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. Southwest wind 6 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. South southwest wind 5 to 10 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 75. Light southwest wind increasing to 8 to 13 mph in the morning.

    High: 75 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. Southwest wind 8 to 11 mph.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Southwest wind 6 to 11 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. Southwest wind 6 to 10 mph.
Tonight
Mostly cloudy, with a low around 61. South southwest wind 5 to 10 mph.
Friday
A 20 percent chance of showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 75. Light southwest wind increasing to 8 to 13 mph in the morning.
Friday Night
Partly cloudy, with a low around 55. Southwest wind 8 to 11 mph.
Saturday
Mostly sunny, with a high near 75. Southwest wind 6 to 11 mph.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 54.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Napa Co. Airport CA
 38.18°N 122.26°W (Elev. 56 ft)
11:46 am PDT Aug 27, 2026
12pm PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database