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.

light rain,mist

57°F

14°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 55°F (13°C)
Visibility 3.00 mi
Last update 10 Apr 06:35 AM PDT
Extended Forecast for

8 Miles WNW Vacaville CA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am.  Steady temperature around 55. South southwest wind 5 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 11pm, then a chance of rain after 11pm.  Steady temperature around 54. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers then
    Chance Rain

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after 11am.  Temperature rising to near 53 by 8am, then falling to around 49 during the remainder of the day. South wind 10 to 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °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 48. South southeast wind 9 to 14 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  High near 52. South southeast wind 10 to 13 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of rain before 11pm.  Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. Steady temperature around 55. South southwest wind 5 to 11 mph, with gusts as high as 22 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, mainly before 11pm, then a chance of rain after 11pm. Steady temperature around 54. South southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of rain, then showers and possibly a thunderstorm after 11am. Temperature rising to near 53 by 8am, then falling to around 49 during the remainder of the day. South wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
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 48. South southeast wind 9 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 52. South southeast wind 10 to 13 mph, with gusts as high as 26 mph. 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. Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Vacaville CA
 38.39°N 122.11°W (Elev. 1365 ft)
2:51 am PDT Apr 10, 2026
6am PDT Apr 10, 2026-6pm PDT Apr 16, 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