KONT temperature trend
Ontario International Airport
Temperature and dew point over time. The gap between them is what decides fog, and the temperature itself is what decides your density altitude and takeoff run.
Warmest
42 °C
Sep 9, 2026
Coldest
17 °C
Sep 19, 2026
Mean temperature
24.8 °C
Mean dew point
16.2 °C
377 archived observations · Archive updated continuously
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