Heavy Precipitation in the West; Wintry Mix in the North; Fire Weather in the High Plains

Pacific moisture will continue to bring locally heavy coastal/lower elevation rain and heavy mountain snow to the West Coast and portions of the Intermountain West through Monday. A wintry mix will create hazardous travel across the northern Plains and Upper Midwest into early Monday. Dry, gusty winds are resulting in elevated to critical fire weather in the south/central High Plains. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

54°F

12°C

Humidity 81%
Wind Speed WSW 9 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Last update 04 Jan 06:15 PM PST
Extended Forecast for

San Mateo CA

Coastal Flood Advisory January 4, 06:41pm until January 5, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory January 4, 06:41pm until January 5, 03:00pm

    NOW until 3:00pm Mon

    Coastal Flood Advisory

  • Tonight

    Low: 48 °F

    Showers
    Likely

  • Monday

    Monday: Showers.  High near 58. South southeast wind 10 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 10pm.  Mostly cloudy, with a low around 47. East southeast wind 5 to 8 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 10am.  Partly sunny, with a high near 58. North northeast wind 3 to 5 mph.

    High: 58 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. Light northwest wind.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers.  Partly sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers likely, mainly after 10pm. Mostly cloudy, with a low around 48. South southeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers. High near 58. South southeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 47. East southeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 20 percent chance of showers before 10am. Partly sunny, with a high near 58. North northeast wind 3 to 5 mph.
Tuesday Night
Mostly cloudy, with a low around 47. Light northwest wind.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 58.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 41.
Friday
Mostly sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.56°N 122.33°W (Elev. 108 ft)
8:51 am PST Jan 4, 2026
6pm PST Jan 4, 2026-6pm PST Jan 11, 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