High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

47°F

8°C

Humidity	83%
Wind Speed	E 12 MPH
Barometer	30.25 in (1024.38 mb)
Dewpoint	42°F (6°C)
Visibility	8.00 mi
Wind Chill	42°F (6°C)
Last update	25 Jan 07:54 PM PST

More Information:

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

Extended Forecast for

Sonoma CA

Tonight
Low: 36 °F
Cloudy then
Patchy Frost
and Patchy
Fog
Monday
High: 57 °F
Patchy Fog
then Mostly
Sunny
Monday Night
Low: 36 °F
Patchy Fog
then Patchy
Frost and
Areas Fog
Tuesday
High: 55 °F
Patchy Frost
and Areas Fog
then Slight
Chance Rain
Tuesday Night
Low: 44 °F
Chance Rain
and Patchy
Fog
Wednesday
High: 60 °F
Chance Rain
and Areas Fog
then Mostly
Sunny
Wednesday Night
Low: 41 °F
Areas Fog
Thursday
High: 61 °F
Areas Fog
then Mostly
Sunny
Thursday Night
Low: 42 °F
Patchy Fog

Detailed Forecast

Tonight

Patchy fog after 2am. Patchy frost between 4am and 5am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 36. Northeast wind 5 to 7 mph.

Monday

Patchy fog before 9am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming south southeast around 6 mph in the afternoon.

Monday Night

Patchy fog after 10pm. Patchy frost after 5am. Otherwise, partly cloudy, with a low around 36. Calm wind.

Tuesday

A 10 percent chance of rain after 4pm. Areas of fog before 10am. Patchy frost before 7am. Otherwise, partly sunny, with a high near 55. Calm wind becoming southeast around 5 mph in the afternoon.

Tuesday Night

A 40 percent chance of rain, mainly after 10pm. Patchy fog after midnight. Otherwise, cloudy, with a low around 44. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A 30 percent chance of rain before 10am. Areas of fog before noon. Otherwise, partly sunny, with a high near 60.

Wednesday Night

Areas of fog. Otherwise, partly cloudy, with a low around 41.

Thursday

Areas of fog before 11am. Otherwise, mostly sunny, with a high near 61.

Thursday Night

Patchy fog. Otherwise, mostly cloudy, with a low around 42.

Friday

Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 61.

Friday Night

Patchy fog. Otherwise, mostly cloudy, with a low around 42.