Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

55°F

13°C

Humidity	87%
Wind Speed	W 8 MPH
Barometer	29.99 in (1015.58 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	06 Jul 08:00 AM PDT

More Information:

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

Extended Forecast for

4 Miles E Saint Helena CA

Today
High: 82 °F
Patchy Fog
then Sunny
Tonight
Low: 49 °F
Mostly Clear
then Areas
Fog
Tuesday
High: 82 °F
Areas Fog
then Sunny
Tuesday Night
Low: 50 °F
Clear then
Areas Fog
Wednesday
High: 88 °F
Patchy Fog
then Sunny
Wednesday Night
Low: 54 °F
Mostly Clear
Thursday
High: 92 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 92 °F
Sunny

Detailed Forecast

Today

Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.

Tonight

Areas of fog after 1am. Otherwise, increasing clouds, with a low around 49. Light and variable wind.

Tuesday

Areas of fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.

Tuesday Night

Areas of fog after 1am. Otherwise, increasing clouds, with a low around 50. Southwest wind around 5 mph becoming calm in the evening.

Wednesday

Patchy fog before 8am. Otherwise, sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 54.

Thursday

Sunny, with a high near 92.

Thursday Night

Mostly clear, with a low around 56.

Friday

Sunny, with a high near 92.