Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

48°F

9°C

Humidity 81%
Wind Speed SW 4 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 17 Apr 10:20 PM PDT
Extended Forecast for

5 Miles W Napa Co. Airport CA

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 47. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 11pm.  Mostly cloudy, with a low around 49. Southwest wind 5 to 9 mph becoming light south southwest  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 65. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 61.

    High: 61 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 43. Calm wind.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming south southwest around 6 mph in the afternoon.
Saturday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 47. South southwest wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. Southwest wind 5 to 9 mph becoming light south southwest after midnight. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Mostly sunny, with a high near 64.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 43.
Thursday
Patchy fog. Otherwise, sunny, with a high near 68.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Friday
Patchy fog. Otherwise, sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Napa Co. Airport CA
 38.21°N 122.38°W (Elev. 3 ft)
1:26 pm PDT Apr 17, 2026
10pm PDT Apr 17, 2026-6pm PDT Apr 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