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, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10.0ft.

Mostly Cloudy

50°F

10°C

Humidity	76%
Wind Speed	SE 4 MPH
Barometer	30.08 in (1018.63 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Wind Chill	49°F (9°C)
Last update	31 Dec 03:56 AM PST

More Information:

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

Extended Forecast for

San Francisco International Airport CA

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

Click here for hazard details and duration

Coastal Flood Advisory

Overnight
Low: 50 °F
Chance Rain
Wednesday
High: 55 °F
Rain
Wednesday Night
Low: 51 °F
Rain
New Year's Day
High: 60 °F
Rain
Thursday Night
Low: 54 °F
Rain
Friday
High: 60 °F
Rain and
Breezy
Friday Night
Low: 54 °F
Showers and
Breezy
Saturday
High: 59 °F
Rain and
Breezy
Saturday Night
Low: 51 °F
Rain

Detailed Forecast

Overnight

A 30 percent chance of rain. Cloudy, with a steady temperature around 50. Southeast wind around 9 mph.

Wednesday

Rain, mainly after 10am. High near 55. Southeast wind around 9 mph becoming east northeast in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Low around 51. East wind 9 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. High near 60. East southeast wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 21 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 around 15 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 60. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then rain and possibly a thunderstorm after 4am. Low around 54. Breezy. Chance of precipitation is 100%.

Saturday

Rain. Cloudy, with a high near 59. Breezy.

Saturday Night

Rain. Mostly cloudy, with a low around 51.

Sunday

Rain likely. Mostly cloudy, with a high near 58.

Sunday Night

Rain likely. Mostly cloudy, with a low around 50.

Monday

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

Monday Night

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