Rancho Cucamonga, CA

Updated 10/4/2026, 9:18:12 PM PDT

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WEATHER

84°F. Clear. Wind 0 mph. 7-Day Forecast →

Low 75°High 101°

Current

AIR

AQI 115 (Unhealthy for Sensitive Groups).

GoodHazardous

AQI 115

PUBLIC ALERTS

1 active alert

Extreme Heat Warning

ROADS

I-15 • CA-210

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