Clipper System Moving Across the Nation; Heavy Precipitation Across the Pacific Northwest

A clipper system moving through the Ohio Valley, Lower Great Lakes and central Appalachians will continue to produce snow and rain through Wednesday. Higher elevations of the central Appalachians could receive a few inches of snow. Meanwhile, excessive rainfall, flooding and high elevation snow will continue to impact the Pacific Northwest through mid-week. Read More >

Hazardous Weather Conditions

Dense Fog Advisory in effect from December 5, 11:00 PM PST until December 6, 10:00 AM PST

En Español

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

57°F

14°C

Humidity	76%
Wind Speed	N 0 MPH
Barometer	30.1 in (1019.3 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	05 Dec 11:30 PM PST

More Information:

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

Extended Forecast for

Foster City CA

Dense Fog Advisory until December 6, 10:00am

Click here for hazard details and duration

Dense Fog Advisory

Dense Fog Advisory until December 6, 10:00am

NOW until
10:00am Wed

Dense Fog Advisory
Overnight

Slight Chance
Rain
Low: 49 °F
Wednesday

Rain and
Areas Fog
High: 64 °F
Wednesday
Night

Rain Likely
then Chance
Rain
Low: 49 °F
Thursday

Rain Likely
High: 61 °F
Thursday
Night

Chance Rain
then Clear
Low: 43 °F
Friday

Sunny
High: 59 °F
Friday
Night

Mostly Clear
Low: 41 °F
Saturday

Mostly Sunny
High: 61 °F

Detailed Forecast

Overnight

A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 49. Light west wind.

Wednesday

Rain, mainly after 10am. Areas of fog before 10am. High near 64. South southeast wind 5 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 49. West wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday

Rain likely, mainly between 10am and 4pm. Partly sunny, with a high near 61. West wind 5 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

A 30 percent chance of rain before 10pm. Mostly clear, with a low around 43. Northwest wind 8 to 10 mph.

Friday

Sunny, with a high near 59.

Friday Night

Mostly clear, with a low around 41.

Saturday

Mostly sunny, with a high near 61.

Saturday Night

A slight chance of rain after 10pm. Mostly cloudy, with a low around 45.

Sunday

Partly sunny, with a high near 62.