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

34°F

1°C

Humidity	100%
Wind Speed	NW 5 MPH
Barometer	30.0 in (1015.92 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	29°F (-2°C)
Last update	20 Feb 03:35 AM PST

More Information:

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

Extended Forecast for

4 Miles WSW Yountville CA

Extreme Cold Warning until February 20, 09:00am

Click here for hazard details and duration

Extreme Cold Warning

Extreme Cold Warning until February 20, 09:00am
NOW until 9:00am Fri
Extreme Cold Warning
Overnight
Low: 36 °F
Areas Frost
Friday
High: 48 °F
Areas Frost
then Partly
Sunny
Friday Night
Low: 37 °F
Partly Cloudy
Saturday
High: 53 °F
Partly Sunny
Saturday Night
Low: 47 °F
Rain Likely
Sunday
High: 58 °F
Rain Likely
Sunday Night
Low: 51 °F
Chance Rain
Monday
High: 60 °F
Rain Likely

Detailed Forecast

Overnight

Patchy frost before 4am, then areas of frost after 5am. Otherwise, mostly clear, with a steady temperature around 36. Calm wind.

Friday

Areas of frost before 8am. Otherwise, partly sunny, with a high near 48. Light and variable wind.

Friday Night

Partly cloudy, with a low around 37. Calm wind.

Saturday

Partly sunny, with a high near 53. South southeast wind 3 to 8 mph. Winds could gust as high as 21 mph.

Saturday Night

Rain likely, mainly after 4am. Mostly cloudy, with a low around 47. Southeast wind around 8 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 58. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 51.

Monday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 60.

Monday Night

Rain. Cloudy, with a low around 54.

Tuesday

Rain. Cloudy, with a high near 57.

Tuesday Night

Rain likely. Cloudy, with a low around 52.

Wednesday

Rain likely. Mostly cloudy, with a high near 60.