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.

Mist

55°F

13°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.93 in (1013.55 mb)
Dewpoint	54°F (12°C)
Visibility	5.00 mi
Last update	01 Jan 02:20 PM PST

More Information:

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

Extended Forecast for

3 Miles NNW 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: 57 °F
Rain Likely
Tonight
Low: 50 °F
Rain Likely
Friday
High: 57 °F
Mostly Cloudy
then Slight
Chance Rain
Friday Night
Low: 51 °F
Rain
Saturday
High: 57 °F
Showers
Saturday Night
Low: 50 °F
Rain
Sunday
High: 55 °F
Rain
Sunday Night
Low: 44 °F
Rain
Monday
High: 53 °F
Rain

Detailed Forecast

New Year's Day

Rain likely, mainly before 3pm. Cloudy, with a high near 57. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Rain likely, mainly before 1am. Cloudy, with a low around 50. South southeast wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

A 20 percent chance of rain after 3pm. Mostly cloudy, with a high near 57. Southeast wind 7 to 14 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Rain. Low around 51. South southeast wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Saturday

Rain before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm. High near 57. South wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Rain. Low around 50. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

Rain. High near 55. Chance of precipitation is 100%.

Sunday Night

Rain. Mostly cloudy, with a low around 44.

Monday

Rain. Mostly cloudy, with a high near 53.

Monday Night

A chance of rain, mainly before 4am. Mostly cloudy, with a low around 43.

Tuesday

A slight chance of rain. Partly sunny, with a high near 56.