Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along coastal areas from the DelMarVa Peninsula through southeastern New England. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

61°F

16°C

Humidity	67%
Wind Speed	NNE 3 MPH
Barometer	30.22 in (1023.37 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	22 Feb 01:00 PM PST

More Information:

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

Extended Forecast for

San Mateo CA

This Afternoon
High: 65 °F
Sunny
Tonight
Low: 46 °F
Partly Cloudy
then Patchy
Fog
Monday
High: 67 °F
Patchy Fog
then Partly
Sunny
Monday Night
Low: 53 °F
Chance Rain
Tuesday
High: 64 °F
Rain
Tuesday Night
Low: 54 °F
Rain then
Chance Rain
Wednesday
High: 65 °F
Slight Chance
Rain then
Partly Sunny
Wednesday Night
Low: 50 °F
Partly Cloudy
then Patchy
Fog
Thursday
High: 68 °F
Patchy Fog
then Partly
Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 65. South wind around 8 mph.

Tonight

Patchy fog after 4am. Otherwise, partly cloudy, with a low around 46. Light south wind.

Monday

Patchy fog before 9am. Otherwise, mostly sunny, with a high near 67. Light and variable wind.

Monday Night

A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 53. Calm wind becoming south around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Rain, mainly after 10am. High near 64. South wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday Night

Rain, mainly before 10pm. Low around 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 65.

Wednesday Night

Patchy fog after 3am. Otherwise, partly cloudy, with a low around 50.

Thursday

Patchy fog before 8am. Otherwise, partly sunny, with a high near 68.

Thursday Night

Partly cloudy, with a low around 51.

Friday

Partly sunny, with a high near 69.