National Weather Service Forecast for: Cupertino CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:50 am PDT Jul 5, 2025
 
Today

Today: Sunny, with a high near 78. North wind 6 to 9 mph.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 52. North northwest wind 5 to 7 mph becoming calm in the evening.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 80. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 53. West northwest wind 5 to 8 mph becoming calm in the evening.
Mostly Clear
 Monday

Monday: Sunny, with a high near 80. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 55.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 81.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 55.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 85.
Sunny
Hi 78 °F Lo 52 °F Hi 80 °F Lo 53 °F Hi 80 °F Lo 55 °F Hi 81 °F Lo 55 °F Hi 85 °F

 

Today
 
 Sunny, with a high near 78. North wind 6 to 9 mph.
Tonight
 
 Mostly clear, with a low around 52. North northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
 
 Sunny, with a high near 80. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Sunday Night
 
 Mostly clear, with a low around 53. West northwest wind 5 to 8 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 80. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 55.
Tuesday
 
 Sunny, with a high near 81.
Tuesday Night
 
 Mostly clear, with a low around 55.
Wednesday
 
 Sunny, with a high near 85.
Wednesday Night
 
 Mostly clear, with a low around 58.
Thursday
 
 Sunny, with a high near 90.
Thursday Night
 
 Mostly clear, with a low around 59.
Friday
 
 Sunny, with a high near 87.

 

Forecast from NOAA-NWS for Cupertino CA.