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

Critical fire weather conditions will persist in the central High Plains through Friday as gusty winds and dry conditions continue. The heat wave across the West and Southwest will continue to intensify through the week, with daily and monthly record highs expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

72°F

22°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Mar 08:00 PM PDT
Extended Forecast for

Napa CA

Heat Advisory March 18, 08:15pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 08:15pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 54 °F

    Clear

  • Thursday

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

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58. Calm wind.

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Light west wind.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 54. Calm wind.
Thursday
Sunny, with a high near 90. Calm wind.
Thursday Night
Clear, with a low around 58. Calm wind.
Friday
Sunny, with a high near 93. Calm wind.
Friday Night
Mostly clear, with a low around 57. Light west wind.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 48.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 74.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
3:12 pm PDT Mar 18, 2026
8pm 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