Significant Winter Storm to Affect the Pacific Coast through the Upper Midwest

A significant storm will bring high winds and heavy precipitation, including mountain snow, to portions of the western U.S. this weekend. Extremely dangerous travel is expected through passes. Confidence is increasing that this storm will then impact the central U.S. with heavy snow and strong winds to the north and severe thunderstorms with possible tornadoes and heavy rainfall to the south. Read More >

Hazardous Weather Conditions

Wind Advisory in effect from December 10, 12:00 AM PST until December 10, 03:00 PM PST

En Español

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33ft.

Overcast

9°C

49°F

Humidity	73%
Wind Speed	S 4 MPH
Barometer	30.02 in (1016.59 mb)
Dewpoint	5°C (41°F)
Visibility	16 km
Wind Chill	9°C (48°F)
Last update	09 Dec 09:54 PM PST

More Information:

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

Extended Forecast for

6 Miles NNE Benicia CA

Wind Advisory December 10, 12:00am until December 10, 03:00pm

Click here for hazard details and duration

Wind Advisory

Tonight

Cloudy then
Showers
Likely
Low: 8 °C
Saturday

Showers and
Breezy
High: 14 °C
Saturday
Night

Showers
Low: 7 °C
Sunday

Showers
Likely
High: 12 °C
Sunday
Night

Chance
Showers
Low: 4 °C
Monday

Mostly Sunny
High: 12 °C
Monday
Night

Mostly Clear
then Areas
Frost
Low: 2 °C
Tuesday

Areas Frost
then Mostly
Sunny
High: 11 °C
Tuesday
Night

Partly Cloudy
Low: 2 °C

Detailed Forecast

Tonight

Showers likely, mainly after 4am. Cloudy, with a low around 8. South wind 11 to 16 km/h increasing to 19 to 24 km/h after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.

Saturday

Showers, mainly before 3pm. High near 14. Breezy, with a south southwest wind 34 to 39 km/h decreasing to 27 to 32 km/h in the afternoon. Winds could gust as high as 60 km/h. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 cm possible.

Saturday Night

Showers and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms after 4am. Low around 7. Southwest wind 21 to 24 km/h, with gusts as high as 35 km/h. Chance of precipitation is 100%. New rainfall amounts between 5 and 7.5 mm possible.

Sunday

Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 12. South southwest wind 14 to 21 km/h, with gusts as high as 29 km/h. Chance of precipitation is 70%. New rainfall amounts between 5 and 7.5 mm possible.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 4. South wind 13 to 21 km/h becoming northeast after midnight. Chance of precipitation is 50%.

Monday

Mostly sunny, with a high near 12.

Monday Night

Areas of frost after 5am. Otherwise, mostly clear, with a low around 2.

Tuesday

Areas of frost before 9am. Otherwise, mostly sunny, with a high near 11.

Tuesday Night

Partly cloudy, with a low around 2.

Wednesday

A slight chance of showers. Partly sunny, with a high near 10.

Wednesday Night

A slight chance of showers. Mostly cloudy, with a low around 2.