National Weather Service Forecast for: San Mateo CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 3:06 pm PST Nov 1, 2026
 
Tonight

Tonight: Mostly clear, with a low around 50. West northwest wind 5 to 8 mph becoming calm in the evening.
Mostly Clear

 Monday

Monday: Partly sunny, with a high near 67. Light and variable wind.
Partly Sunny

 Monday
Night
Monday Night: Showers likely, mainly after 4am. Mostly cloudy, with a low around 53. Calm wind becoming south southwest 5 to 7 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Cloudy
then Showers
Likely
 Tuesday

Tuesday: Showers, mainly before 4pm. High near 66. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Showers

 Tuesday
Night
Tuesday Night: A 30 percent chance of showers before 10pm. Partly cloudy, with a low around 51. East northeast wind 5 to 7 mph.
Chance
Showers then
Partly Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 67.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 53.
Partly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 70.
Mostly Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 52.
Mostly Clear
Lo 50 °F Hi 67 °F Lo 53 °F Hi 66 °F Lo 51 °F Hi 67 °F Lo 53 °F Hi 70 °F Lo 52 °F

 

Tonight
 
 Mostly clear, with a low around 50. West northwest wind 5 to 8 mph becoming calm in the evening.
Monday
 
 Partly sunny, with a high near 67. Light and variable wind.
Monday Night
 
 Showers likely, mainly after 4am. Mostly cloudy, with a low around 53. Calm wind becoming south southwest 5 to 7 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Showers, mainly before 4pm. High near 66. South wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 A 30 percent chance of showers before 10pm. Partly cloudy, with a low around 51. East northeast wind 5 to 7 mph.
Wednesday
 
 Mostly sunny, with a high near 67.
Wednesday Night
 
 Partly cloudy, with a low around 53.
Thursday
 
 Mostly sunny, with a high near 70.
Thursday Night
 
 Mostly clear, with a low around 52.
Friday
 
 Sunny, with a high near 72.
Friday Night
 
 Mostly clear, with a low around 53.
Saturday
 
 Sunny, with a high near 76.
Saturday Night
 
 Partly cloudy, with a low around 54.
Sunday
 
 Mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for San Mateo CA.