Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

smoke

68°F

20°C

Humidity	65%
Wind Speed	SW 5 MPH
Barometer	30.02 in (1016.59 mb)
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	31 Jul 10:54 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: 94 °F
Haze
Tonight
Low: 56 °F
Haze
Saturday
High: 98 °F
Haze
Saturday Night
Low: 58 °F
Haze
Sunday
High: 99 °F
Hot
Sunday Night
Low: 59 °F
Mostly Clear
Monday
High: 98 °F
Hot
Monday Night
Low: 56 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny

Detailed Forecast

Today

Widespread haze. Patchy smoke after 5pm. Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.

Tonight

Widespread haze. Widespread smoke, mainly between 8pm and 10pm. Mostly clear, with a low around 56. Calm wind.

Saturday

Widespread haze. Partly sunny, then gradually becoming sunny and hot, with a high near 98. Calm wind becoming south southwest around 6 mph in the afternoon.

Saturday Night

Widespread haze. Patchy smoke. Mostly clear, with a low around 58. West southwest wind around 5 mph becoming calm after midnight.

Sunday

Sunny and hot, with a high near 99. Calm wind becoming southwest around 5 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 59.

Monday

Sunny and hot, with a high near 98.

Monday Night

Mostly clear, with a low around 56.

Tuesday

Sunny, with a high near 94.