Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

46°F

8°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	30.08 in (1018.63 mb)
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Last update	22 Apr 12:20 AM PDT

More Information:

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

Extended Forecast for

Napa Co. Airport CA

Overnight
Low: 47 °F
Chance
Showers
Wednesday
High: 63 °F
Showers
Likely then
Chance
Showers
Wednesday Night
Low: 40 °F
Mostly Clear
then Patchy
Fog
Thursday
High: 70 °F
Areas Fog
then Sunny
Thursday Night
Low: 44 °F
Mostly Clear
then Patchy
Fog
Friday
High: 66 °F
Patchy Fog
then Partly
Sunny
Friday Night
Low: 46 °F
Mostly Cloudy
Saturday
High: 63 °F
Partly Sunny
Saturday Night
Low: 45 °F
Partly Cloudy

Detailed Forecast

Overnight

A chance of rain, mainly between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a steady temperature around 47. West southwest wind around 6 mph becoming light and variable. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Rain and thunderstorms likely before 2pm, then a slight chance of rain between 2pm and 3pm. Partly sunny, with a high near 63. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Patchy fog after 3am. Otherwise, mostly clear, with a low around 40. West wind around 6 mph becoming calm after midnight.

Thursday

Areas of fog before 9am. Otherwise, sunny, with a high near 70. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

Thursday Night

Patchy fog after 5am. Otherwise, partly cloudy, with a low around 44. West wind 5 to 10 mph becoming light west southwest after midnight.

Friday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 66.

Friday Night

Mostly cloudy, with a low around 46.

Saturday

Partly sunny, with a high near 63.