Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory 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

57°F

14°C

Humidity	93%
Wind Speed	SE 9 MPH
Barometer	29.92 in (1013.21 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	01 Jan 02:20 PM PST

More Information:

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

Extended Forecast for

2 Miles SE Colma CA

Coastal Flood Advisory January 1, 02:32pm until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory January 1, 02:32pm until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
New Year's Day
High: 61 °F
Chance Rain
Tonight
Low: 52 °F
Rain Likely
then Slight
Chance Rain
Friday
High: 61 °F
Slight Chance
Rain then
Rain
Friday Night
Low: 55 °F
Showers and
Breezy
Saturday
High: 62 °F
Showers and
Breezy
Saturday Night
Low: 53 °F
Showers
Sunday
High: 58 °F
Rain
Sunday Night
Low: 49 °F
Rain

Detailed Forecast

New Year's Day

A 30 percent chance of rain, mainly after 4pm. Mostly cloudy, with a high near 61. South wind around 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 52. Southeast wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday

A slight chance of rain before 3pm, then rain after 4pm. High near 61. Southeast wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 55. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Rain before 4pm, then showers and possibly a thunderstorm after 4pm. High near 62. Breezy, with a south wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm before 7pm, then rain between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday

Rain. High near 58. Chance of precipitation is 100%.

Sunday Night

Rain. Mostly cloudy, with a low around 49.

Monday

Rain. Mostly cloudy, with a high near 57.

Monday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 46.

Tuesday

A chance of rain. Partly sunny, with a high near 57.

Tuesday Night

A slight chance of rain. Mostly cloudy, with a low around 47.