Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

61°F

16°C

Humidity	82%
Wind Speed	SSW 5 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	15 Sep 12:20 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: 52 °F
Partly Cloudy
Tuesday
High: 85 °F
Patchy Fog
then Sunny
Tuesday Night
Low: 50 °F
Clear then
Patchy Fog
Wednesday
High: 78 °F
Areas Fog
then Sunny
Wednesday Night
Low: 49 °F
Patchy Fog
Thursday
High: 82 °F
Areas Fog
then Sunny
Thursday Night
Low: 51 °F
Clear then
Patchy Fog
Friday
High: 87 °F
Areas Fog
then Sunny
Friday Night
Low: 51 °F
Clear then
Patchy Fog

Detailed Forecast

Overnight

Partly cloudy, with a low around 52. Calm wind.

Tuesday

Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.

Tuesday Night

Patchy fog after midnight. Otherwise, increasing clouds, with a low around 50. Calm wind.

Wednesday

Areas of fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

Wednesday Night

Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 49. Southwest wind around 6 mph becoming calm in the evening.

Thursday

Areas of fog before 10am. Otherwise, mostly sunny, with a high near 82.

Thursday Night

Patchy fog after midnight. Otherwise, mostly clear, with a low around 51.

Friday

Areas of fog before 9am. Otherwise, sunny, with a high near 87.

Friday Night

Patchy fog after 2am. Otherwise, mostly clear, with a low around 51.

Saturday

Areas of fog before 9am. Otherwise, mostly sunny, with a high near 86.