Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

43°F

6°C

Humidity 86%
Wind Speed SW 8 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Feb 07:20 AM PST
Extended Forecast for

San Mateo CA

  • Today

    Today: Rain, mainly before 11am.  High near 52. Light and variable wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain then
    Chance Rain

  • Tonight

    Tonight: Rain, mainly after 11pm.  Low around 44. Calm wind becoming west northwest 5 to 8 mph after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 44 °F

    Rain Likely
    then Rain

  • Thursday

    Thursday: Rain, mainly before 10am.  High near 51. West northwest wind 10 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain.  Partly cloudy, with a low around 40. Northwest wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Slight Chance
    Rain

  • Friday

    Friday: Mostly sunny, with a high near 53. Light north northwest wind.

    High: 53 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 10 percent chance of rain after 4am.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 10am.  Partly sunny, with a high near 57.

    High: 57 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain, mainly after 10pm.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Rain

  • Sunday

    Sunday: Rain.  Cloudy, with a high near 61.

    High: 61 °F

    Rain

Detailed Forecast

Today
Rain, mainly before 11am. High near 52. Light and variable wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly after 11pm. Low around 44. Calm wind becoming west northwest 5 to 8 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain, mainly before 10am. High near 51. West northwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 40. Northwest wind 7 to 14 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 53. Light north northwest wind.
Friday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 42.
Saturday
A 30 percent chance of rain, mainly after 10am. Partly sunny, with a high near 57.
Saturday Night
Rain, mainly after 10pm. Mostly cloudy, with a low around 51.
Sunday
Rain. Cloudy, with a high near 61.
Sunday Night
Rain. Cloudy, with a low around 54.
Monday
Rain. Cloudy, with a high near 61.
Monday Night
Rain. Cloudy, with a low around 52.
Tuesday
Rain. Mostly cloudy, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.58°N 122.33°W (Elev. 33 ft)
2:29 am PST Feb 18, 2026
7am PST Feb 18, 2026-6pm PST Feb 24, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database