Dangerous Heat to Continue through the Holiday Weekend; Severe Storms on Friday from the Plains to the Mid-Atlantic

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing across the eastern U.S. through the Independence Day holiday weekend. Peak heat indices of up to 115 degrees are possible. Isolated to scattered severe thunderstorms are possible from the northern/central Plains into the Midwest, Ohio Valley, and Mid-Atlantic Friday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

52°F

11°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.96 in (1014.56 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	03 Jul 01:00 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

Overnight
Low: 50 °F
Fog
Friday
High: 86 °F
Fog then
Sunny
Friday Night
Low: 52 °F
Clear then
Patchy Fog
Independence Day
High: 86 °F
Areas Fog
then Sunny
Saturday Night
Low: 52 °F
Mostly Clear
then Patchy
Fog
Sunday
High: 82 °F
Patchy Fog
then Partly
Sunny
Sunday Night
Low: 52 °F
Partly Cloudy
then Patchy
Fog
Monday
High: 82 °F
Areas Fog
then Sunny
Monday Night
Low: 50 °F
Mostly Clear
then Fog

Detailed Forecast

Overnight

Widespread fog, mainly after 4am. Otherwise, partly cloudy, with a low around 50. Calm wind.

Friday

Widespread fog, mainly before 7am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon.

Friday Night

Patchy fog after 3am. Otherwise, increasing clouds, with a low around 52. Light and variable wind.

Independence Day

Areas of fog before 7am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. Calm wind becoming south southwest around 6 mph in the afternoon.

Saturday Night

Patchy fog after 3am. Otherwise, partly cloudy, with a low around 52. Southwest wind around 6 mph becoming calm in the evening.

Sunday

Patchy fog before 7am. Otherwise, partly sunny, with a high near 82.

Sunday Night

Patchy fog after 2am. Otherwise, partly cloudy, with a low around 52.

Monday

Areas of fog before 8am. Otherwise, mostly sunny, with a high near 82.

Monday Night

Widespread fog, mainly after 3am. Otherwise, mostly clear, with a low around 50.

Tuesday

Widespread fog, mainly before 7am. Otherwise, mostly sunny, with a high near 84.