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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Missoula, MT
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September
Average Temperature
High
22°
Feels 22
Low
7°
Feels 6
Average Precipitation
6 Days
Rain amount
17.7mm
Snow amount
0.2cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
19°
3
18°
4
20°
5
21°
6
22°
7
16°
8
20°
9
22°
10
23°
11
22°
12
20°
13
19°
14
19°
15
21°
16
21°
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, September 2, 2026
Day
19°
Feels 19
Wind
16 km/h E
Gust
24 km/h
Humidity
56%
P.O.P
60%
Rain
~5 mm
Night
9°
Feels 9
Wind
7 km/h E
Gust
11 km/h
Humidity
93%
P.O.P
20%
Historical Averages
Sep 2
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.