Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

56°F

13°C

Humidity 83%
Wind Speed NW 10 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 18 Apr 11:56 PM PDT
Extended Forecast for

Belmont CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 70 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 4am.  Partly cloudy, with a low around 51. Southwest wind 6 to 8 mph becoming south southeast after midnight.

    Low: 51 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 11am.  Partly sunny, with a high near 71. South southeast wind 6 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain.  Low around 52. South wind 6 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am.  High near 66. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am.  Mostly sunny, with a high near 66.

    High: 66 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 51. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Sunday Night
A 20 percent chance of rain after 4am. Partly cloudy, with a low around 51. Southwest wind 6 to 8 mph becoming south southeast after midnight.
Monday
Rain likely, mainly after 11am. Partly sunny, with a high near 71. South southeast wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 52. South wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 66. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Wednesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Belmont CA
 37.52°N 122.29°W (Elev. 207 ft)
11:21 pm PDT Apr 18, 2026
12am PDT Apr 19, 2026-6pm PDT Apr 25, 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