What is Helena, Montana's record low temperature?

Helena's record low is minus 42°F.

How do Chinook winds affect Helena, MT?

Chinook winds descending from the Rockies can raise Helena's temperature 40°F in hours, briefly making January afternoons feel like early spring.

Helena's record high is 105°F.

Yes, wildfire smoke from surrounding national forests has become an increasingly severe summer and fall hazard in Helena.

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