Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

70°F

21°C

Humidity 52%
Wind Speed WSW 12 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 Aug 08:00 PM PDT
Detailed forecast for

North Bay Interior Mountains

Tonight
Partly cloudy. Lows in the upper 50s to mid 60s. West winds 5 to 10 mph.
Wednesday
Sunny. Highs in the mid 80s to lower 90s. Northwest winds around 5 mph...becoming southwest in the afternoon.
Wednesday Night
Mostly clear. Lows in the mid 60s to lower 70s. Northwest winds 5 to 10 mph.
Thursday
Sunny in the morning then becoming partly cloudy. Highs in the 80s to mid 90s. West winds 5 to 10 mph.
Thursday Night
Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid to upper 60s. West winds 5 to 10 mph.
Friday
Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 70s to upper 80s.
Friday Night And Saturday
Mostly clear. Lows in the 50s to lower 60s. Highs in the 70s to 80s.
Saturday Night
Clear. Lows in the 50s.
Sunday And Sunday Night
Mostly clear. Highs in the lower 70s to mid 80s. Lows in the 50s.
Monday Through Tuesday
Mostly clear. Highs in the mid 60s to lower 80s. Lows in the 40s to upper 50s.



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602 PM PDT Tue Aug 25 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database