National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

66°F

19°C

Humidity 68%
Wind Speed W 20 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 30 Jul 03:50 PM PDT
Extended Forecast for

San Mateo CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. West wind 5 to 11 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 70. West wind 5 to 10 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. West southwest wind 6 to 9 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 71. West southwest wind 5 to 10 mph.

    High: 71 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. West wind 5 to 11 mph, with gusts as high as 18 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 70. West wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 58. West southwest wind 6 to 9 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 71. West southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 57. West wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.58°N 122.33°W (Elev. 33 ft)
Last Update:
1:26 pm PDT Jul 30, 2025
Forecast Valid:
4pm PDT Jul 30, 2025-6pm PDT Aug 6, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation