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	63%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Last update	31 Dec 05:43 AM PST

More Information:

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

Extended Forecast for

3 Miles SE 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: 50 °F
Rain
New Year's Day
High: 61 °F
Rain
Thursday Night
Low: 54 °F
Rain
Friday
High: 61 °F
Rain
Friday Night
Low: 52 °F
Showers
Saturday
High: 60 °F
Rain
Saturday Night
Low: 51 °F
Rain

Detailed Forecast

Today

Rain, mainly after 10am. High near 55. East southeast wind 6 to 8 mph becoming north in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Rain. Low around 50. East northeast wind around 8 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 61. East wind 7 to 10 mph becoming south in the afternoon. 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 wind 9 to 11 mph, with gusts as high as 22 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 14 to 20 mph, with gusts as high as 32 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 60. Chance of precipitation is 90%.

Saturday Night

Rain. Mostly cloudy, with a low around 51.

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.