Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Clear

81°F

27°C

Humidity	34%
Wind Speed	SSE 3 MPH
Barometer	29.94 in (1013.89 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	09 Sep 08:20 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Sonoma CA

Heat Advisory September 9, 08:33pm until September 10, 10:00pm

Coastal Flood Advisory September 9, 08:33pm until September 10, 01:00am

Click here for hazard details and duration

Heat Advisory

Coastal Flood Advisory

Heat Advisory September 9, 08:33pm until September 10, 10:00pm
Coastal Flood Advisory September 9, 08:33pm until September 10, 01:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 65 °F
Partly Cloudy
Thursday
High: 93 °F
Decreasing
Clouds
Thursday Night
Low: 56 °F
Partly Cloudy
Friday
High: 86 °F
Becoming
Sunny
Friday Night
Low: 54 °F
Mostly Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 51 °F
Mostly Clear
Sunday
High: 83 °F
Sunny

Detailed Forecast

Tonight

Partly cloudy, with a low around 65. Calm wind.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 93. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

Thursday Night

Partly cloudy, with a low around 56. West southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.

Friday

Partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

Friday Night

Mostly clear, with a low around 54. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.

Saturday

Sunny, with a high near 79.

Saturday Night

Mostly clear, with a low around 51.

Sunday

Sunny, with a high near 83.

Sunday Night

Mostly clear, with a low around 52.

Monday

Sunny, with a high near 84.