Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

73°F

23°C

Humidity 29%
Wind Speed SW 6 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Apr 01:35 PM PDT
Extended Forecast for

5 Miles W Napa Co. Airport CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 75. South southwest wind 3 to 6 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Light southwest wind.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

    High: 70 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 64. Light south southeast wind becoming south southwest 5 to 9 mph in the morning.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers.  Low around 50. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers.  Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 75. South southwest wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 47. Light southwest wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 46. Southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 64. Light south southeast wind becoming south southwest 5 to 9 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers. Low around 50. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 61. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 45.
Wednesday
A chance of showers. Partly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
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 72.
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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 18, 2026
1pm PDT Apr 18, 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