National Weather Service Forecast for: Belmont CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:28 pm PST Dec 16, 2025
 
This
Afternoon
This Afternoon: Partly sunny, with a high near 63. Calm wind.
Partly Sunny

 Tonight

Tonight: Rain likely, mainly after 4am. Patchy fog between 9pm and 3am. Otherwise, mostly cloudy, with a steady temperature around 57. Light south southwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
and Patchy
Fog
 Wednesday

Wednesday: Rain likely, mainly before 10am. Patchy fog between 8am and 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely
and Patchy
Fog then
Chance Rain
 Wednesday
Night
Wednesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 47. Light west northwest wind.
Patchy Fog

 Thursday

Thursday: A 10 percent chance of rain after 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 62. Light and variable wind.
Patchy Fog
then Slight
Chance Rain
 Thursday
Night
Thursday Night: A 30 percent chance of rain, mainly after 10pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.
Chance Rain
and Patchy
Fog
 Friday

Friday: A 40 percent chance of rain. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 63.
Chance Rain
and Areas Fog

 Friday
Night
Friday Night: Rain likely. Cloudy, with a low around 54.
Rain Likely

 Saturday

Saturday: Rain likely. Cloudy, with a high near 62.
Rain Likely
Hi 63 °F Lo 57 °F Hi 64 °F Lo 47 °F Hi 62 °F Lo 52 °F Hi 63 °F Lo 54 °F Hi 62 °F

 

This Afternoon
 
 Partly sunny, with a high near 63. Calm wind.
Tonight
 
 Rain likely, mainly after 4am. Patchy fog between 9pm and 3am. Otherwise, mostly cloudy, with a steady temperature around 57. Light south southwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
 Rain likely, mainly before 10am. Patchy fog between 8am and 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
 Patchy fog. Otherwise, mostly cloudy, with a low around 47. Light west northwest wind.
Thursday
 
 A 10 percent chance of rain after 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 62. Light and variable wind.
Thursday Night
 
 A 30 percent chance of rain, mainly after 10pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.
Friday
 
 A 40 percent chance of rain. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 63.
Friday Night
 
 Rain likely. Cloudy, with a low around 54.
Saturday
 
 Rain likely. Cloudy, with a high near 62.
Saturday Night
 
 Rain. Cloudy, with a low around 54.
Sunday
 
 Rain. Cloudy, with a high near 62.
Sunday Night
 
 Rain likely. Cloudy, with a low around 53.
Monday
 
 Rain likely. Cloudy, with a high near 61.

 

Forecast from NOAA-NWS for Belmont CA.