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

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on 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.

49°F

9°C

Humidity	76%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Last update	30 Dec 05:43 PM PST

More Information:

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

Extended Forecast for

3 Miles WNW San Francisco CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Tonight
Low: 48 °F
Slight Chance
Rain
Wednesday
High: 54 °F
Rain
Wednesday Night
Low: 50 °F
Rain
New Year's Day
High: 57 °F
Rain
Thursday Night
Low: 55 °F
Rain
Friday
High: 58 °F
Rain and
Breezy
Friday Night
Low: 51 °F
Rain
Saturday
High: 56 °F
Rain
Saturday Night
Low: 49 °F
Rain Likely

Detailed Forecast

Tonight

A 20 percent chance of rain after 10pm. Cloudy, with a low around 48. Northeast wind 9 to 11 mph.

Wednesday

Rain, mainly after 10am. High near 54. Northeast wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 50. East northeast wind around 10 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 57. East northeast wind around 10 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain. Low around 55. South wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Rain. High near 58. Breezy. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

Rain. Low around 51. Chance of precipitation is 90%.

Saturday

Rain. Mostly cloudy, with a high near 56.

Saturday Night

Rain likely. Cloudy, with a low around 49.

Sunday

Rain likely. Mostly cloudy, with a high near 55.

Sunday Night

Rain likely. Mostly cloudy, with a low around 48.