Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 20, 01:00 AM PST until February 20, 09:00 AM PST

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

50°F

10°C

Humidity	61%
Wind Speed	WNW 26 MPH
Barometer	29.86 in (1011.18 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	43°F (6°C)
Last update	19 Feb 06:00 PM PST

More Information:

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

Extended Forecast for

San Mateo CA

Cold Weather Advisory February 20, 01:00am until February 20, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

Tonight
Low: 42 °F
Increasing
Clouds
Friday
High: 54 °F
Partly Sunny
Friday Night
Low: 42 °F
Partly Cloudy
Saturday
High: 58 °F
Partly Sunny
Saturday Night
Low: 51 °F
Chance Rain
Sunday
High: 63 °F
Chance Rain
Sunday Night
Low: 53 °F
Chance Rain
Monday
High: 65 °F
Rain Likely
Monday Night
Low: 56 °F
Rain

Detailed Forecast

Tonight

Increasing clouds, with a low around 42. West northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

Friday

Partly sunny, with a high near 54. Light and variable wind.

Friday Night

Partly cloudy, with a low around 42. Calm wind becoming southeast around 5 mph after midnight.

Saturday

Partly sunny, with a high near 58. South wind 7 to 14 mph, with gusts as high as 22 mph.

Saturday Night

A 30 percent chance of rain after 10pm. Partly cloudy, with a low around 51. South southeast wind 13 to 15 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.

Sunday

A 50 percent chance of rain. Partly sunny, with a high near 63. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 53.

Monday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 65.

Monday Night

Rain. Mostly cloudy, with a low around 56.

Tuesday

Rain. Cloudy, with a high near 60.

Tuesday Night

Rain likely. Cloudy, with a low around 52.