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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

54°F

12°C

Humidity 81%
Wind Speed SW 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 12 Apr 09:20 PM PDT
Extended Forecast for

Napa Co. Airport CA

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 40. West southwest wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 64 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. West southwest wind 5 to 9 mph becoming light west after midnight.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44.

    Low: 44 °F

    Clear

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 40. West southwest wind around 5 mph becoming calm in the evening.
Monday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 41. West wind around 6 mph becoming calm in the evening.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. West southwest wind 5 to 9 mph becoming light west after midnight.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 68.
Thursday Night
Clear, with a low around 44.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 46.
Sunday
A slight chance of rain. Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa Co. Airport CA
 38.22°N 122.3°W (Elev. 3 ft)
Last Update:
6:36 pm PDT Apr 12, 2026
Forecast Valid:
9pm PDT Apr 12, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

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