National Weather Service Forecast for: Cupertino CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:44 pm PST Feb 1, 2026
 
Overnight

Overnight: Mostly clear, with a low around 44. Light west northwest wind.
Mostly Clear
 Monday

Monday: Sunny, with a high near 68. North northwest wind 3 to 6 mph.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 43. Calm wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 72. Light north wind.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 45. Light east northeast wind.
Clear
 Wednesday

Wednesday: Sunny, with a high near 73.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 46.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 72.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 48.
Partly Cloudy
Lo 44 °F Hi 68 °F Lo 43 °F Hi 72 °F Lo 45 °F Hi 73 °F Lo 46 °F Hi 72 °F Lo 48 °F

 

Overnight
 
 Mostly clear, with a low around 44. Light west northwest wind.
Monday
 
 Sunny, with a high near 68. North northwest wind 3 to 6 mph.
Monday Night
 
 Mostly clear, with a low around 43. Calm wind.
Tuesday
 
 Sunny, with a high near 72. Light north wind.
Tuesday Night
 
 Clear, with a low around 45. Light east northeast wind.
Wednesday
 
 Sunny, with a high near 73.
Wednesday Night
 
 Mostly clear, with a low around 46.
Thursday
 
 Sunny, with a high near 72.
Thursday Night
 
 Partly cloudy, with a low around 48.
Friday
 
 Mostly sunny, with a high near 68.
Friday Night
 
 Partly cloudy, with a low around 46.
Saturday
 
 Mostly sunny, with a high near 68.
Saturday Night
 
 Partly cloudy, with a low around 47.
Sunday
 
 A slight chance of rain. Mostly sunny, with a high near 68.

 

Forecast from NOAA-NWS for Cupertino CA.