Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

61°F

16°C

Humidity 63%
Wind Speed N 0 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 30 Mar 09:35 AM PDT
Extended Forecast for

Napa CA

  • Today

    Today: Partly sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. South southwest wind around 6 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain.  Mostly cloudy, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 67 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 49. Southwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 49 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 64. Light south southwest wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance Rain
    and Patchy
    Fog

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before 11am.  Sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 51. South southwest wind around 6 mph becoming calm in the evening.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
A 40 percent chance of rain. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 49. Southwest wind 5 to 9 mph becoming calm in the evening.
Wednesday
A 50 percent chance of rain. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 64. Light south southwest wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 20 percent chance of rain before 11am. Sunny, with a high near 66.
Thursday Night
Clear, with a low around 44.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.27°N 122.28°W (Elev. 3 ft)
1:41 am PDT Mar 30, 2026
9am PDT Mar 30, 2026-6pm PDT Apr 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database