Threats of Heavy Rainfall, Severe Thunderstorms and Dangerous Heat

Several complexes of thunderstorms, some severe with heavy rainfall, will impact areas from the northern Plains, Great Lakes, Ohio Valley to the mid-Atlantic. This threat will shift toward the Carolinas on Friday. Heavy rainfall, remnants of Edouard, continues for portions of eastern Texas through today. In-between these systems, a dome of high pressure and heat for central and eastern states. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Overcast

72°F

22°C

Humidity 60%
Wind Speed SW 16 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 03 Sep 04:35 PM PDT
Extended Forecast for

San Mateo CA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly after 5pm.  Partly sunny, with a steady temperature around 72. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 72 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 57 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 72. Light west southwest wind becoming west northwest 6 to 11 mph in the morning.

    High: 72 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. West northwest wind 6 to 11 mph becoming light west  after midnight. Winds could gust as high as 18 mph.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Labor Day

    Labor Day: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly after 5pm. Partly sunny, with a steady temperature around 72. Southwest wind around 11 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of rain, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West southwest wind 5 to 7 mph becoming calm after midnight.
Friday
Partly sunny, then gradually becoming sunny, with a high near 72. Light west southwest wind becoming west northwest 6 to 11 mph in the morning.
Friday Night
Partly cloudy, with a low around 56. West northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 73. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 56.
Labor Day
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Partly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A slight chance of rain. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.56°N 122.33°W (Elev. 108 ft)
1:26 pm PDT Sep 3, 2026
4pm PDT Sep 3, 2026-6pm PDT Sep 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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