Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mostly Cloudy

61°F

16°C

Humidity 72%
Wind Speed S 11 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 11 Apr 02:20 PM PDT
Extended Forecast for

4 Miles NNW Napa CA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm.  High near 59. South wind around 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 10pm, then a chance of showers between 10pm and 11pm, then showers likely and possibly a thunderstorm after 11pm.  Low around 43. South wind 5 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 43 °F

    Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 1pm.  High near 59. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 11pm.  Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 40. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 40 °F

    Chance
    Showers and
    Patchy Fog
    then Areas
    Fog

  • Monday

    Monday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon.

    High: 65 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm.  Otherwise, mostly clear, with a low around 40.

    Low: 40 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am.  Otherwise, sunny, with a high near 68.

    High: 68 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 41.

    Low: 41 °F

    Clear then
    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 69.

    High: 69 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 59. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 10pm, then a chance of showers between 10pm and 11pm, then showers likely and possibly a thunderstorm after 11pm. Low around 43. South wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and thunderstorms, mainly before 1pm. High near 59. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of showers before 11pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40. West southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 40.
Tuesday
Areas of fog before 10am. Otherwise, sunny, with a high near 68.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 41.
Wednesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 72.
Thursday Night
Clear, with a low around 44.
Friday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Napa CA
 38.35°N 122.33°W (Elev. 105 ft)
1:26 pm PDT Apr 11, 2026
2pm PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database