National Weather Service Forecast for: Cupertino CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT Jul 24, 2025
 
Tonight

Tonight: Increasing clouds, with a low around 57. North northwest wind around 6 mph becoming calm  after midnight.
Increasing
Clouds
Friday

Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming north 5 to 9 mph in the afternoon.
Becoming
Sunny
Friday
Night
Friday Night: Increasing clouds, with a low around 57. West wind 3 to 8 mph.
Increasing
Clouds
Saturday

Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming west 5 to 8 mph in the afternoon.
Decreasing
Clouds
Saturday
Night
Saturday Night: Partly cloudy, with a low around 57. West wind 5 to 9 mph becoming calm  after midnight.
Partly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 80.
Mostly Sunny
Sunday
Night
Sunday Night: Mostly clear, with a low around 55.
Mostly Clear
Monday

Monday: Sunny, with a high near 82.
Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 57 °F Hi 78 °F Lo 57 °F Hi 76 °F Lo 57 °F Hi 80 °F Lo 55 °F Hi 82 °F Lo 56 °F

 

Tonight
 
Increasing clouds, with a low around 57. North northwest wind around 6 mph becoming calm after midnight.
Friday
 
Mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming north 5 to 9 mph in the afternoon.
Friday Night
 
Increasing clouds, with a low around 57. West wind 3 to 8 mph.
Saturday
 
Mostly cloudy, then gradually becoming sunny, with a high near 76. Calm wind becoming west 5 to 8 mph in the afternoon.
Saturday Night
 
Partly cloudy, with a low around 57. West wind 5 to 9 mph becoming calm after midnight.
Sunday
 
Mostly sunny, with a high near 80.
Sunday Night
 
Mostly clear, with a low around 55.
Monday
 
Sunny, with a high near 82.
Monday Night
 
Mostly clear, with a low around 56.
Tuesday
 
Sunny, with a high near 82.
Tuesday Night
 
Partly cloudy, with a low around 56.
Wednesday
 
Mostly sunny, with a high near 81.
Wednesday Night
 
Partly cloudy, with a low around 57.
Thursday
 
Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Cupertino CA.