Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Wind Advisory in effect from January 2, 01:00 PM PST until January 3, 01:00 PM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

52°F

11°C

Humidity	87%
Wind Speed	E 10 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	01 Jan 07:00 AM PST

More Information:

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

Extended Forecast for

2 Miles SSW Lake Berryessa CA

Wind Advisory January 2, 01:00pm until January 3, 01:00pm

Click here for hazard details and duration

Wind Advisory

New Year's Day
High: 52 °F
Showers
Tonight
Low: 51 °F
Showers
Friday
High: 53 °F
Showers
Likely
Friday Night
Low: 51 °F
Showers
Saturday
High: 53 °F
Showers
Saturday Night
Low: 49 °F
Showers
Sunday
High: 50 °F
Showers
Sunday Night
Low: 47 °F
Showers
Monday
High: 49 °F
Showers

Detailed Forecast

New Year's Day

Showers. High near 52. Southeast wind 8 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Tonight

Showers, mainly before 4am. Steady temperature around 51. South wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Showers likely, mainly after 10am. Mostly cloudy, with a high near 53. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Showers. Low around 51. South southeast wind 14 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Saturday

Showers before 10am, then showers and possibly a thunderstorm between 10am and 1pm, then showers after 1pm. High near 53. South wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers, with thunderstorms also possible after 7pm. Low around 49. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers. High near 50. Chance of precipitation is 100%.

Sunday Night

Showers. Cloudy, with a low around 47.

Monday

Showers. Mostly cloudy, with a high near 49.

Monday Night

Showers likely, mainly before 10pm. Mostly cloudy, with a low around 44.

Tuesday

A chance of showers. Partly sunny, with a high near 51.

Tuesday Night

A slight chance of showers. Partly cloudy, with a low around 41.