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 the Northeastern Seaboard. 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.

Clear

55°F

13°C

Humidity	87%
Wind Speed	NE 4 MPH
Barometer	30.21 in (1023.03 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	23 Feb 11:50 AM PST

More Information:

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

Extended Forecast for

San Mateo CA

This Afternoon
High: 67 °F
Partly Sunny
Tonight
Low: 54 °F
Chance Rain
Tuesday
High: 64 °F
Rain Likely
Tuesday Night
Low: 55 °F
Rain Likely
Wednesday
High: 64 °F
Slight Chance
Rain then
Partly Sunny
Wednesday Night
Low: 51 °F
Partly Cloudy
then Patchy
Fog
Thursday
High: 66 °F
Patchy Fog
then Mostly
Sunny
Thursday Night
Low: 52 °F
Mostly Cloudy
Friday
High: 68 °F
Partly Sunny

Detailed Forecast

This Afternoon

Partly sunny, with a high near 67. Light and variable wind.

Tonight

A 50 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 54. Light and variable wind becoming south southeast around 5 mph after midnight. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Rain likely, mainly after 10am. Mostly cloudy, with a high near 64. South wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night

Rain likely, mainly before 10pm. Mostly cloudy, with a low around 55. South southwest wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday

A 20 percent chance of rain before 10am. Partly sunny, with a high near 64. Calm wind becoming northwest around 5 mph in the afternoon.

Wednesday Night

Patchy fog after 5am. Otherwise, partly cloudy, with a low around 51.

Thursday

Patchy fog before 8am. Otherwise, partly sunny, with a high near 66.

Thursday Night

Mostly cloudy, with a low around 52.

Friday

Partly sunny, with a high near 68.

Friday Night

Mostly cloudy, with a low around 53.