National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Overcast

55°F

13°C

Humidity 96%
Wind Speed N 5 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Apr 09:23 AM PDT
Extended Forecast for

5 Miles W Napa Co. Airport CA

  • Today

    Today: Showers and possibly a thunderstorm. High near 65. Light south wind becoming south southwest 5 to 10 mph in the morning. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 50. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely then
    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 60. South wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 45. South wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    Showers

  • Sunday

    Sunday: Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 59. South southeast wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of rain before 11pm. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 42. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance Rain
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 65. Light south wind becoming south southwest 5 to 10 mph in the morning. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 50. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 60. South wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain and possibly a thunderstorm before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Low around 45. South wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 59. South southeast wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of rain before 11pm. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 42. New precipitation amounts of less than a tenth of an inch possible.
Monday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 73.
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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)
Last Update:
2:51 am PDT Apr 10, 2026
Forecast Valid:
9am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation