Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

82°F

28°C

Humidity 54%
Wind Speed WSW 8 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 18 Mar 03:35 PM PDT
Extended Forecast for

2 Miles N Napa Co. Airport CA

Heat Advisory March 18, 03:53pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 03:53pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 59. Calm wind.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 56. Calm wind.
Thursday
Sunny, with a high near 90. Light and variable wind.
Thursday Night
Clear, with a low around 59. Calm wind.
Friday
Sunny, with a high near 90. Calm wind.
Friday Night
Mostly clear, with a low around 57. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 50.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Napa Co. Airport CA
 38.25°N 122.27°W (Elev. 59 ft)
3:12 pm PDT Mar 18, 2026
3pm PDT Mar 18, 2026-6pm PDT Mar 25, 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