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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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August
Average Temperature
High
24°
Feels 24
Low
8°
Feels 7
Average Precipitation
5 Days
Rain amount
9.1mm
Snow amount
0.1cm
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Daily Historical Averages
August 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
25°
22
28°
23
23°
24
23°
25
26°
26
26°
27
23°
28
22°
29
20°
30
20°
31
20°
Forecast
Friday, August 21, 2026
Day
25°
Feels 25
Wind
11 km/h E
Gust
17 km/h
Humidity
41%
P.O.P
10%
Night
15°
Feels 15
Wind
12 km/h S
Gust
18 km/h
Humidity
72%
P.O.P
20%
Historical Averages
Aug 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.