Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

82°F

28°C

Humidity	30%
Wind Speed	W 4 MPH
Barometer	30.06 in (1017.95 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	09 Sep 11:20 AM PDT

More Information:

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

Extended Forecast for

4 Miles NNW Napa CA

Heat Advisory September 9, 11:43am until September 10, 10:00pm

Coastal Flood Advisory September 9, 11:43am until September 10, 01:00am

Click here for hazard details and duration

Heat Advisory

Coastal Flood Advisory

Heat Advisory September 9, 11:43am until September 10, 10:00pm
Coastal Flood Advisory September 9, 11:43am until September 10, 01:00am
NOW: Multiple hazards in effect
Click HERE for Details
Today
High: 98 °F
Hot
Tonight
Low: 68 °F
Increasing
Clouds
Thursday
High: 91 °F
Gradual
Clearing
Thursday Night
Low: 57 °F
Partly Cloudy
Friday
High: 85 °F
Mostly Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 78 °F
Mostly Sunny
Saturday Night
Low: 53 °F
Mostly Clear

Detailed Forecast

Today

Mostly sunny and hot, with a high near 98. Calm wind becoming west southwest around 6 mph in the afternoon.

Tonight

Increasing clouds, with a low around 68. Calm wind.

Thursday

Cloudy through mid morning, then gradual clearing, with a high near 91. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

Thursday Night

Partly cloudy, with a low around 57. Southwest wind around 6 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 85. Calm wind becoming southwest 5 to 9 mph in the afternoon.

Friday Night

Mostly clear, with a low around 55.

Saturday

Mostly sunny, with a high near 78.

Saturday Night

Mostly clear, with a low around 53.

Sunday

Sunny, with a high near 82.