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 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

36°F

2°C

Humidity	93%
Wind Speed	N 6 MPH
Barometer	30.13 in (1020.32 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	21 Feb 04:20 AM PST

More Information:

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

Extended Forecast for

Napa CA

Cold Weather Advisory February 21, 04:35am until February 21, 09:00am

Click here for hazard details and duration

...

Cold Weather Advisory February 21, 04:35am until February 21, 09:00am
NOW until 9:00am Sat
Cold Weather Advisory
Today
High: 57 °F
Patchy Fog
then Mostly
Sunny
Tonight
Low: 43 °F
Partly Cloudy
then Chance
Rain
Sunday
High: 61 °F
Chance Rain
then Mostly
Cloudy
Sunday Night
Low: 44 °F
Patchy Fog
Monday
High: 63 °F
Areas Fog
then Chance
Rain
Monday Night
Low: 51 °F
Rain and
Patchy Fog
Tuesday
High: 60 °F
Rain
Tuesday Night
Low: 50 °F
Rain and
Patchy Fog

Detailed Forecast

Today

Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind becoming south 5 to 8 mph in the afternoon.

Tonight

A 30 percent chance of rain after 4am. Increasing clouds, with a low around 43. South southeast wind 3 to 6 mph.

Sunday

A 30 percent chance of rain before 10am. Mostly cloudy, with a high near 61. Calm wind becoming south around 5 mph in the afternoon.

Sunday Night

Patchy fog. Otherwise, mostly cloudy, with a low around 44. Calm wind.

Monday

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

Monday Night

Rain, mainly after 10pm. Patchy fog after 10pm. Low around 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

Rain. High near 60. Chance of precipitation is 90%.

Tuesday Night

Rain, mainly before 10pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 50.

Wednesday

A chance of rain. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 64.

Wednesday Night

A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 46.

Thursday

A slight chance of rain. Areas of fog. Otherwise, partly sunny, with a high near 67.

Thursday Night

A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 48.