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Monthly
Precipitation
Temperature
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Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Saint Mary, MT
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October
Average Temperature
High
10°
Feels 8
Low
0°
Feels -4
Average Precipitation
3 Days
Rain amount
1.5mm
Snow amount
2.6cm
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Daily Historical Averages
October 2026
S
M
T
W
T
F
S
1
2
3
4
5
20°
6
19°
7
20°
8
18°
9
18°
10
4°
11
-1°
12
3°
13
7°
14
8°
15
7°
16
8°
17
8°
18
8°
19
10°
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Monday, October 5, 2026
Day
20°
Feels 20
Wind
29 km/h SW
Gust
44 km/h
Humidity
30%
P.O.P
20%
Night
10°
Feels 8
Wind
23 km/h W
Gust
35 km/h
Humidity
47%
P.O.P
20%
Historical Averages
Oct 5
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.