Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Extreme Cold Warning in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

36°F

2°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.96 in (1014.56 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Last update	20 Feb 12:30 AM PST

More Information:

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

Extended Forecast for

2 Miles N Napa Co. Airport CA

Extreme Cold Warning February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Overnight
Low: 32 °F
Frost
Friday
High: 51 °F
Frost then
Partly Sunny
Friday Night
Low: 35 °F
Mostly Clear
then Patchy
Frost
Saturday
High: 56 °F
Patchy Fog
then Slight
Chance Rain
Saturday Night
Low: 45 °F
Chance Rain
Sunday
High: 61 °F
Chance Rain
Sunday Night
Low: 49 °F
Chance Rain
Monday
High: 62 °F
Chance Rain
Monday Night
Low: 53 °F
Rain

Detailed Forecast

Overnight

Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 32. Light north wind.

Friday

Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 51. Calm wind becoming southeast around 5 mph in the afternoon.

Friday Night

Patchy frost before 2am, then patchy frost after 3am. Otherwise, partly cloudy, with a low around 35. Calm wind.

Saturday

A 10 percent chance of rain after 4pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 56. Light east wind becoming southeast 5 to 9 mph in the morning.

Saturday Night

A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 45. Southeast wind 7 to 9 mph.

Sunday

A 50 percent chance of rain. Mostly cloudy, with a high near 61. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 49.

Monday

A chance of rain, mainly after 10am. Mostly cloudy, with a high near 62.

Monday Night

Rain, mainly after 10pm. Cloudy, with a low around 53.

Tuesday

Rain. Cloudy, with a high near 60.