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

68°F

20°C

Humidity 18%
Wind Speed N 4 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 17 Apr 12:00 PM PDT
Extended Forecast for

5 Miles SSE Sonoma CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 73. West wind around 6 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. West wind around 6 mph becoming calm  in the evening.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 11pm.  Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 11am.  Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 61.

    High: 61 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 73. West wind around 6 mph.
Tonight
Partly cloudy, with a low around 42. West wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 46. South southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 70. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Monday Night
Rain likely. Mostly cloudy, with a low around 49.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 61.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Mostly sunny, with a high near 65.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 43.
Thursday
Patchy fog. Otherwise, sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Sonoma CA
 38.22°N 122.44°W (Elev. 3 ft)
11:26 am PDT Apr 17, 2026
12pm PDT Apr 17, 2026-6pm PDT Apr 23, 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