Average Temperatures for Montana in October





Average temperatures for October at cities, towns, parks and lakes throughout Montana are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Northwestern, Southwestern, South - Central and Eastern Montana.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Northwestern Montana

Average October temperatures
High °F Low °F Place High °C Low °C
54 30 Cut Bank 12 -1
50 29 East Glacier Park 10 -1
54 29 Gibson Reservoir Dam 12 -2
54 29 Kalispell 12 -2
59 34 Libby 15 1
56 32 Missoula 13 0
54 26 Polebridge 12 -4
56 36 Polson 13 2
55 32 Rogers Pass 13 0
56 29 Seeley Lake 13 -2
52 33 West Glacier 11 0
53 31 Whitefish 11 -1

Southwestern Montana

Average daily temperatures in October
High °F Low °F Place High °C Low °C
57 31 Anaconda 14 -1
57 32 Bozeman 14 0
54 27 Butte 12 -3
55 26 Deer Lodge 13 -3
56 30 Dillon 14 -1
60 34 Gardiner 15 1
51 28 Hebgen Lake Dam 10 -2
58 34 Helena 14 1
58 27 Sula 15 -3
58 31 Virginia City 14 0
51 21 West Yellowstone 10 -6

South - Central Montana

October temperatures: daily averages
High °F Low °F Place High °C Low °C
61 38 Bighorn Lake, Yellowtail Dam 16 3
59 37 Billings 15 3
47 24 Cooke City 8 -4
52 32 Mystic Lake 11 0
56 31 Red Lodge 14 0

Eastern Montana

Average October temperatures
High °F Low °F Place High °C Low °C
59 31 Culbertson 15 0
60 32 Elwell Lake, Tiber Dam 15 0
61 37 Fort Peck Lake Dam 16 3
57 34 Glasgow 14 1
60 36 Glendive 15 2
57 33 Great Falls 14 0
58 31 Havre City 14 -1
56 31 Lewistown 13 -1
59 34 Miles City 15 1
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Montana Temperatures
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