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

72°F

22°C

Humidity 73%
Wind Speed WSW 5 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 18 Mar 11:35 AM PDT
Extended Forecast for

7 Miles NE Yountville CA

Heat Advisory March 18, 11:57am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 11:57am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. Southwest wind around 6 mph becoming north after midnight.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 87. North wind around 7 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 65. North northwest wind around 6 mph.

    Low: 65 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. North northwest wind around 6 mph becoming west in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 84. Northeast wind around 6 mph becoming southwest in the afternoon.
Tonight
Clear, with a low around 64. Southwest wind around 6 mph becoming north after midnight.
Thursday
Sunny, with a high near 87. North wind around 7 mph.
Thursday Night
Clear, with a low around 65. North northwest wind around 6 mph.
Friday
Sunny, with a high near 87. North northwest wind around 6 mph becoming west in the afternoon.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Yountville CA
 38.45°N 122.27°W (Elev. 1998 ft)
1:59 am PDT Mar 18, 2026
11am PDT Mar 18, 2026-6pm PDT Mar 24, 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