Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075° N Lon: 122.27944° W Elev: 33.0 ft.

Clear

39°F

4°C

Humidity 93%
Wind Speed NE 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Apr 04:15 AM PDT
Detailed forecast for

North Bay Interior Mountains

Rest Of Tonight
Mostly clear. Lows in the upper 40s. Northeast winds up to 5 mph.
Saturday
Sunny. Highs in the lower 60s to mid 70s. East winds up to 5 mph...becoming south around 5 mph in the afternoon.
Saturday Night
Mostly cloudy. Lows in the lower 50s. Southwest winds around 5 mph in the evening...becoming light.
Sunday
Mostly cloudy. Highs in the upper 50s to lower 70s. Southwest winds 5 to 10 mph.
Sunday Night
Mostly cloudy. A chance of showers. Lows around 50. Southwest winds 5 to 10 mph. Chance of showers 50 percent.
Monday
Showers likely. Highs in the mid 50s to lower 60s.
Monday Night
Showers. Lows in the lower 50s.
Tuesday
Showers and a chance of thunderstorms. Highs in the 50s.
Tuesday Night
Rain likely. Lows in the upper 40s.
Wednesday
Mostly cloudy. A chance of rain. Highs in the 50s to lower 60s.
Wednesday Night And Thursday
Partly cloudy. Lows in the mid 40s. Highs in the 50s to upper 60s.
Thursday Night And Friday
Mostly clear. Lows in the mid 40s. Highs in the upper 50s to lower 70s.



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302 AM PDT Sat Apr 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database