KGTF temperature trend
Great Falls 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
31 °C
Sep 25, 2026
Coldest
-2 °C
Sep 27, 2026
Mean temperature
14.3 °C
Mean dew point
4.5 °C
555 archived observations · Archive updated continuously
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