National Weather Service Forecast for: Belmont CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:44 pm PST Feb 1, 2026
 
Overnight

Overnight: Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 46. Light west northwest wind.
Patchy Fog
 Monday

Monday: Sunny, with a high near 66. Calm wind becoming north around 5 mph in the afternoon.
Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 45. Calm wind.
Partly Cloudy
 Tuesday

Tuesday: Sunny, with a high near 69. Calm wind becoming north northeast around 6 mph in the morning.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 46. Light east northeast wind.
Clear
 Wednesday

Wednesday: Sunny, with a high near 70.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 47.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 68.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 49.
Partly Cloudy
Lo 46 °F Hi 66 °F Lo 45 °F Hi 69 °F Lo 46 °F Hi 70 °F Lo 47 °F Hi 68 °F Lo 49 °F

 

Overnight
 
 Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 46. Light west northwest wind.
Monday
 
 Sunny, with a high near 66. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
 
 Partly cloudy, with a low around 45. Calm wind.
Tuesday
 
 Sunny, with a high near 69. Calm wind becoming north northeast around 6 mph in the morning.
Tuesday Night
 
 Clear, with a low around 46. Light east northeast wind.
Wednesday
 
 Sunny, with a high near 70.
Wednesday Night
 
 Mostly clear, with a low around 47.
Thursday
 
 Sunny, with a high near 68.
Thursday Night
 
 Partly cloudy, with a low around 49.
Friday
 
 Mostly sunny, with a high near 66.
Friday Night
 
 Partly cloudy, with a low around 49.
Saturday
 
 Mostly sunny, with a high near 65.
Saturday Night
 
 Partly cloudy, with a low around 49.
Sunday
 
 A slight chance of rain. Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Belmont CA.