



Monsoons Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction
In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Sunday. The close proximity of Tropical Storm Humberto and a tropical wave (AL94) could lead to interaction between them, and details of their long-range track and intensity forecasts, and any potential impacts, are more uncertain than usual. Read More >

Current conditions at
Napa, Napa County Airport (KAPC)
Lat: 38.2075° N Lon: 122.27944° W Elev: 33.0 ft.
Partly Cloudy
70°F
21°C
Humidity | 77% |
Wind Speed | S 4 MPH |
Barometer | 29.98 in (1015.24 mb) |
Dewpoint | 63°F (17°C) |
Visibility | 10.00 mi |
Last update | 24 Sep 09:20 PM PDT |
Detailed forecast for
North Bay Interior Mountains
Tonight
Mostly cloudy. A slight chance of showers in the evening. Lows in the lower to mid 60s. West winds around 5 mph.
Thursday
Partly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s. West winds around 5 mph.
Thursday Night
Mostly clear. Lows in the upper 50s to mid 60s. Southwest winds around 5 mph in the evening...becoming light.
Friday
Sunny. Highs in the upper 70s to mid 90s. Northwest winds 5 to 10 mph.
Friday Night
Clear. Lows near 60. West winds around 5 mph in the evening...becoming light.
Saturday
Sunny. Highs in the upper 60s to mid 80s.
Saturday Night
Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s to lower 60s.
Sunday
Partly cloudy. Highs in the 60s to mid 70s.
Sunday Night
Partly cloudy in the evening then becoming mostly cloudy. A slight chance of rain. Lows in the upper 50s.
Monday Through Tuesday
Mostly cloudy. A chance of rain. Highs in the mid 60s to lower 70s. Lows in the upper 50s.
Tuesday Night
Partly cloudy. A chance of rain. Lows in the mid 50s.
Wednesday
Partly cloudy in the morning then becoming sunny. A slight chance of rain. Highs in the 60s to upper 70s.
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