Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Overcast

57°F

14°C

Humidity	76%
Wind Speed	S 8 MPH
Barometer	30.33 in (1027.09 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	27 Jan 11:20 PM PST

More Information:

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

Extended Forecast for

Foster City CA

Tonight
Low: 51 °F
Chance Rain
and Patchy
Fog
Wednesday
High: 62 °F
Decreasing
Clouds
Wednesday Night
Low: 45 °F
Mostly Clear
Thursday
High: 64 °F
Mostly Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 66 °F
Partly Sunny
Friday Night
Low: 46 °F
Mostly Cloudy
Saturday
High: 67 °F
Partly Sunny
Saturday Night
Low: 48 °F
Mostly Cloudy
then Slight
Chance Rain

Detailed Forecast

Tonight

A 40 percent chance of rain. Patchy fog between 1am and 2am. Otherwise, mostly cloudy, with a low around 51. South southeast wind around 6 mph becoming calm after midnight. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 62. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 45. Light and variable wind.

Thursday

Mostly sunny, with a high near 64. Calm wind becoming north around 6 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 46. Light northeast wind.

Friday

Partly sunny, with a high near 66.

Friday Night

Mostly cloudy, with a low around 46.