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 elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 21, 01:00 AM PST until February 21, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

45°F

7°C

Humidity	75%
Wind Speed	N 0 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	21 Feb 12:00 AM PST

More Information:

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

Extended Forecast for

Yountville CA

Cold Weather Advisory February 21, 01:00am until February 21, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Overnight
Low: 34 °F
Patchy Frost
and Patchy
Fog
Saturday
High: 56 °F
Patchy Fog
then Mostly
Sunny
Saturday Night
Low: 43 °F
Partly Cloudy
then Chance
Rain
Sunday
High: 61 °F
Chance Rain
Sunday Night
Low: 45 °F
Slight Chance
Rain and
Patchy Fog
then Areas
Fog
Monday
High: 63 °F
Areas Fog
then Chance
Rain
Monday Night
Low: 51 °F
Rain Likely
and Patchy
Fog
Tuesday
High: 59 °F
Rain
Tuesday Night
Low: 49 °F
Rain and
Patchy Fog

Detailed Forecast

Overnight

Patchy fog. Patchy frost. Otherwise, mostly cloudy, with a low around 34. Calm wind.

Saturday

Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 56. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

Saturday Night

A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 43. Southeast wind 3 to 6 mph.

Sunday

A 30 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 61. Calm wind becoming south around 6 mph in the morning. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 20 percent chance of rain before 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 45. Calm wind.

Monday

A 30 percent chance of rain after 4pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 63.

Monday Night

Rain likely, mainly after 10pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 51. Chance of precipitation is 70%.

Tuesday

Rain. Cloudy, with a high near 59.

Tuesday Night

Rain, mainly before 10pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 49.

Wednesday

A chance of rain. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 63.