Tracking Two Storms Impacting the Central and Eastern U.S. Through This Weekend

Two storm systems will track through the central and eastern U.S. through this weekend with areas of gusty winds, rain, and heavy snow. Severe thunderstorms are forecast Friday from the central Gulf Coast into parts of the lower Mississippi, Tennessee and Ohio Valleys. Heavy to excessive rainfall is forecast from the lower Mississippi River Valley to the Tennessee Valley which may bring flooding. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from January 9, 01:00 AM PST until January 9, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

43°F

6°C

Humidity	52%
Wind Speed	ENE 3 MPH
Barometer	30.35 in (1027.77 mb)
Dewpoint	26°F (-3°C)
Visibility	10.00 mi
Last update	09 Jan 12:15 AM PST

More Information:

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

Extended Forecast for

Sonoma CA

Cold Weather Advisory January 9, 01:00am until January 9, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Overnight
Low: 35 °F
Patchy Frost
Friday
High: 55 °F
Areas Frost
then Sunny
Friday Night
Low: 34 °F
Mostly Clear
then Patchy
Frost
Saturday
High: 55 °F
Frost then
Mostly Sunny
Saturday Night
Low: 34 °F
Mostly Cloudy
Sunday
High: 56 °F
Areas Frost
then Partly
Sunny
Sunday Night
Low: 36 °F
Partly Cloudy
then Patchy
Frost and
Patchy Fog
Monday
High: 58 °F
Patchy Frost
and Patchy
Fog then
Sunny
Monday Night
Low: 39 °F
Mostly Clear
then Patchy
Fog

Detailed Forecast

Overnight

Patchy frost after 5am. Otherwise, partly cloudy, with a low around 35. Light north northwest wind.

Friday

Areas of frost before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 55. Calm wind becoming east around 6 mph in the afternoon.

Friday Night

Patchy frost after 1am. Otherwise, mostly clear, with a low around 34. Calm wind.

Saturday

Widespread frost, mainly before 7am. Otherwise, partly sunny, with a high near 55. Calm wind becoming east northeast around 6 mph in the afternoon.

Saturday Night

Mostly cloudy, with a low around 34. Calm wind.

Sunday

Areas of frost before 9am. Otherwise, partly sunny, with a high near 56.

Sunday Night

Patchy fog after midnight. Patchy frost after 5am. Otherwise, partly cloudy, with a low around 36.

Monday

Patchy fog before 9am. Patchy frost before 8am. Otherwise, sunny, with a high near 58.