National Weather Service Forecast for: San Mateo CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT May 26, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 63. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 34 mph.
Sunny and
Breezy

 Tonight

Tonight: Partly cloudy, with a low around 50. Breezy, with a west northwest wind 17 to 22 mph becoming light west after midnight. Winds could gust as high as 36 mph.
Partly Cloudy
and Breezy
then Partly
Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 67. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Mostly Sunny

 Wednesday
Night
Wednesday Night: A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 51. South southwest wind 3 to 7 mph.
Mostly Cloudy
then Slight
Chance Rain
 Thursday

Thursday: A 30 percent chance of rain before 11am. Partly sunny, with a high near 69. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
then Mostly
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 51.
Partly Cloudy

 Friday

Friday: Partly sunny, with a high near 66.
Partly Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 51.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 66.
Mostly Sunny
Hi 63 °F Lo 50 °F Hi 67 °F Lo 51 °F Hi 69 °F Lo 51 °F Hi 66 °F Lo 51 °F Hi 66 °F

 

This Afternoon
 
 Sunny, with a high near 63. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 34 mph.
Tonight
 
 Partly cloudy, with a low around 50. Breezy, with a west northwest wind 17 to 22 mph becoming light west after midnight. Winds could gust as high as 36 mph.
Wednesday
 
 Mostly sunny, with a high near 67. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Wednesday Night
 
 A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 51. South southwest wind 3 to 7 mph.
Thursday
 
 A 30 percent chance of rain before 11am. Partly sunny, with a high near 69. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
 Partly cloudy, with a low around 51.
Friday
 
 Partly sunny, with a high near 66.
Friday Night
 
 Partly cloudy, with a low around 51.
Saturday
 
 Mostly sunny, with a high near 66.
Saturday Night
 
 Mostly clear, with a low around 49.
Sunday
 
 Sunny, with a high near 72.
Sunday Night
 
 Clear, with a low around 50.
Monday
 
 Sunny, with a high near 75.

 

Forecast from NOAA-NWS for San Mateo CA.