Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

Lat: 37.77056°NLon: 122.42694°WElev: 150.0ft.

52°F

11°C

Humidity	71%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	31 Dec 08:43 AM PST

More Information:

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

Extended Forecast for

San Francisco CA

Coastal Flood Advisory until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
Today
High: 55 °F
Rain
Tonight
Low: 49 °F
Rain
New Year's Day
High: 60 °F
Rain
Thursday Night
Low: 54 °F
Rain
Friday
High: 61 °F
Rain
Friday Night
Low: 52 °F
Showers
Saturday
High: 59 °F
Rain
Saturday Night
Low: 50 °F
Rain

Detailed Forecast

Today

Rain, mainly after 10am. High near 55. Northeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Rain. Low around 49. East northeast wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 60. East wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain, mainly before 4am. Low around 54. South southeast wind 9 to 11 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

Rain, mainly after 10am. High near 61. South southeast wind 13 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain and possibly a thunderstorm before 7pm, then showers and possibly a thunderstorm between 7pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 52. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday

Rain. High near 59. Chance of precipitation is 90%.

Saturday Night

Rain. Mostly cloudy, with a low around 50.

Sunday

Rain. Mostly cloudy, with a high near 58.

Sunday Night

Rain likely. Mostly cloudy, with a low around 49.

Monday

Rain likely. Mostly cloudy, with a high near 57.

Monday Night

Rain likely. Mostly cloudy, with a low around 47.