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

54°F

12°C

Humidity 54%
Wind Speed WSW 4 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 17 Apr 09:05 PM PDT
Extended Forecast for

8 Miles WNW Vacaville CA

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Northwest wind around 5 mph becoming light and variable  after midnight.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Light and variable wind becoming south southwest around 6 mph in the morning.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. West wind around 6 mph.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 67. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 49. Southwest wind 7 to 11 mph, with gusts as high as 23 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers.  Partly sunny, with a high near 60. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. Northwest wind around 5 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 69. Light and variable wind becoming south southwest around 6 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 53. West wind around 6 mph.
Sunday
Partly sunny, with a high near 67. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. Southwest wind 7 to 11 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 60. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Wednesday
A chance of rain. Mostly sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Vacaville CA
 38.39°N 122.11°W (Elev. 1365 ft)
1:26 pm PDT Apr 17, 2026
9pm 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