Inclement Weather in the Pacific Northwest; Severe Thunderstorms in the Southeast; Impending Winter Storm

An approaching storm will bring rain and high elevation snow to Pacific Northwest through the weekend. Isolated severe thunderstorms are possible across parts of the Southeast today into this evening as a low strengthens over the Southeast. This system will form into a winter storm on Sunday that will bring heavy snow, high winds, and coastal flooding to the Mid-Atlantic and Northeast into Monday. 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

41°F

5°C

Humidity	86%
Wind Speed	E 10 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	35°F (2°C)
Last update	21 Feb 07:35 AM PST

More Information:

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

Extended Forecast for

4 Miles NW Yountville CA

Cold Weather Advisory February 21, 07:49am until February 21, 09:00am

Click here for hazard details and duration

...

Cold Weather Advisory February 21, 07:49am until February 21, 09:00am
NOW until 9:00am Sat
Cold Weather Advisory
Today
High: 57 °F
Decreasing
Clouds
Tonight
Low: 43 °F
Partly Cloudy
then Chance
Rain
Sunday
High: 61 °F
Chance Rain
Sunday Night
Low: 46 °F
Slight Chance
Rain and
Patchy Fog
then Patchy
Fog
Monday
High: 65 °F
Areas Fog
then Chance
Rain
Monday Night
Low: 52 °F
Rain Likely
and Patchy
Fog
Tuesday
High: 60 °F
Rain and
Patchy Fog
Tuesday Night
Low: 50 °F
Rain and
Patchy Fog

Detailed Forecast

Today

Mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind becoming southeast around 6 mph in the afternoon.

Tonight

A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 43. South southeast wind 3 to 5 mph.

Sunday

A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 61. South wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 20 percent chance of rain before 10pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 46. Calm wind.

Monday

A 30 percent chance of rain after 4pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 65. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

Monday Night

Rain likely, mainly after 10pm. Patchy fog after 1am. Otherwise, cloudy, with a low around 52. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

Rain. Patchy fog before 7am. High near 60. Chance of precipitation is 90%.

Tuesday Night

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

Wednesday

A chance of rain. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 65.

Wednesday Night

A chance of rain. Mostly cloudy, with a low around 47.

Thursday

A chance of rain. Mostly sunny, with a high near 69.

Thursday Night

A slight chance of rain. Mostly cloudy, with a low around 49.