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Cupertino, CA

Updated 10/24/2026, 2:21:38 AM PDT
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📤 Share Cupertino Conditions
WEATHER
52°F. Mostly clear. Wind 2 mph W. 7-Day Forecast →
Low 50°High 75°
Current
UV INDEX
Peak UV 5 today at 1 PM.
LowExtreme
Peak @ 1 PM
AIR
AQI 52 (Moderate).
GoodHazardous
AQI 52
AIRPORT CONDITIONS
SJC — Clear. Visibility 10+ mi. Wind 3 mph SSE.
Flight Status → • All Monitored Airports →
PUBLIC ALERTS
No active federal alerts reported.
ROADS
I-280 • CA-85 • CA-17
View official Caltrans QuickMap →
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Sources: NWS • AirNow • NOAA Aviation Weather • Open-Meteo • Caltrans