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

Coastal Flood Advisory until January 4, 02:00 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

5 Miles W Napa Co. Airport CA

Coastal Flood Advisory January 1, 07:28am until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory January 1, 07:28am until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
New Year's Day
High: 56 °F
Showers
Tonight
Low: 50 °F
Showers then
Chance
Showers
Friday
High: 56 °F
Chance
Showers
Friday Night
Low: 52 °F
Showers
Saturday
High: 56 °F
Showers
Saturday Night
Low: 51 °F
Showers
Sunday
High: 54 °F
Showers
Sunday Night
Low: 47 °F
Showers

Detailed Forecast

New Year's Day

Showers. High near 56. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Showers, mainly before 10pm. Low around 50. South wind 5 to 7 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday

A 50 percent chance of showers, mainly after 10am. Cloudy, with a high near 56. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Showers, with thunderstorms also possible after 4am. Low around 52. South wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Showers and possibly a thunderstorm. High near 56. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Showers before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then showers after 4pm. High near 54. Chance of precipitation is 90%.

Sunday Night

Showers, with thunderstorms also possible after 10pm. Cloudy, with a low around 47.

Monday

Showers. Mostly cloudy, with a high near 53.

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 54.

Tuesday Night

A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 40.

Wednesday

A slight chance of showers. Patchy fog. Otherwise, partly sunny, with a high near 52.