Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

57°F

14°C

Humidity	87%
Wind Speed	S 10 MPH
Barometer	29.83 in (1010.16 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	02 Jan 10:35 PM PST

More Information:

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

Extended Forecast for

4 Miles E Saint Helena CA

Coastal Flood Advisory January 3, 02:00pm until January 4, 02:00pm

Coastal Flood Warning January 2, 10:47pm until January 3, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Warning

Coastal Flood Warning January 2, 10:47pm until January 3, 02:00pm
NOW until 2:00pm Sat
Coastal Flood Warning
Tonight
Low: 50 °F
Showers
Saturday
High: 54 °F
Showers
Saturday Night
Low: 51 °F
Showers
Sunday
High: 53 °F
Rain
Sunday Night
Low: 44 °F
Rain
Monday
High: 51 °F
Rain
Monday Night
Low: 44 °F
Rain Likely
and Patchy
Fog
Tuesday
High: 55 °F
Areas Fog
then Partly
Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm. Low around 50. South southeast wind 9 to 13 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

Showers and possibly a thunderstorm before 1pm, then rain after 1pm. High near 54. South wind 9 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Rain before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Steady temperature around 51. South southeast wind around 9 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Rain. High near 53. Light and variable wind becoming west southwest 5 to 9 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Sunday Night

Rain. Low around 44. South southeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Rain. High near 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Monday Night

Rain likely, mainly before 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 44. Chance of precipitation is 60%.

Tuesday

Areas of fog before noon. Otherwise, partly sunny, with a high near 55.

Tuesday Night

A slight chance of rain after 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 40.

Wednesday

A chance of rain. Areas of fog before 10am. Otherwise, partly sunny, with a high near 53.

Wednesday Night

A chance of rain. Mostly cloudy, with a low around 36.