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Critical Fire Weather and Severe Thunderstorm Threats This Week

Gusty winds and low relative humidity will contribute to critical fire weather Monday over parts of the central and southern High Plains. Scattered to widespread severe thunderstorms may bring damaging winds, large hail, and tornadoes Monday through Thursday over the lower Mississippi River Valley and southern Plains into the Midwest and Ohio Valley. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

54°F

12°C

Humidity 93%
Wind Speed SSE 4 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 09 Mar 01:00 AM PDT
Extended Forecast for

Napa CA

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, sunny, with a high near 74. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 70. Light west northwest wind.

    High: 70 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. West wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 48. Calm wind.
Monday
Patchy fog before 10am. Otherwise, sunny, with a high near 74. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 44. Calm wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 70. Light west northwest wind.
Tuesday Night
Partly cloudy, with a low around 44. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 77.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
8:32 pm PDT Mar 8, 2026
Forecast Valid:
1am PDT Mar 9, 2026-6pm PDT Mar 15, 2026
 
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Additional Resources

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Chance of Precipitation