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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Mullan Pass, MT
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September
Average Temperature
High
17°
Feels 16
Low
6°
Feels 5
Average Precipitation
6 Days
Rain amount
21.6mm
Snow amount
0.8cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
9°
3
9°
4
11°
5
13°
6
16°
7
11°
8
13°
9
16°
10
17°
11
15°
12
14°
13
13°
14
14°
15
15°
16
15°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, September 2, 2026
Day
9°
Feels 8
Wind
14 km/h SW
Gust
21 km/h
Humidity
71%
P.O.P
100%
Rain
5-10 mm
Night
5°
Feels 3
Wind
12 km/h SW
Gust
18 km/h
Humidity
100%
P.O.P
90%
Rain
~5 mm
Historical Averages
Sep 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.