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

Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane Thursday as it moves north toward the Big Island of Hawaii. Heavy rainfall will continue through Saturday, with locally catastrophic flooding possible. Hurricane Watch in effect. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

63°F

17°C

Humidity 72%
Wind Speed WNW 6 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Sep 10:35 PM PDT
Extended Forecast for

Belmont CA

  • Tonight

    Tonight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. West wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. West northwest wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54. West wind 6 to 16 mph, with gusts as high as 26 mph.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Calm wind.
Thursday
Mostly sunny, with a high near 82. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 59. West wind 6 to 10 mph, with gusts as high as 18 mph.
Friday
Mostly sunny, with a high near 74. West northwest wind 6 to 16 mph, with gusts as high as 26 mph.
Friday Night
Clear, with a low around 54. West wind 6 to 16 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 75.
Monday Night
Clear, with a low around 55.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belmont CA
 37.52°N 122.29°W (Elev. 207 ft)
Last Update:
10:41 pm PDT Sep 23, 2026
Forecast Valid:
10pm PDT Sep 23, 2026-6pm PDT Sep 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation