S
M
T
W
T
F
S
30
76°
53°
31
81°
46°
1
89°
49°
2
93°
59°
3
88°
61°
4
99°
61°
5
86°
57°
6
92°
63°
7
85°
57°
8
77°
52°
9
80°
48°
10
90°
48°
11
69°
50°
12
64°
43°
13
80°
44°
14
71°
49°
15
71°
43°
16
74°
46°
17
82°
58°
18
84°
58°
19
67°
56°
20
66°
52°
21
73°
51°
22
80°
52°
23
78°
50°
24
79°
53°
25
78°
51°
26
74°
47°
27
71°
46°
28
70°
47°
29
71°
48°
30
73°
40°
1
61°
41°
2
68°
48°
3
72°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Miles City
Miles City's September 2026 forecast shows daily high temperatures ranging from 61° to 84°, with overnight lows between 40° and 58°. The average high for September is 73° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Miles City. See also: October | November | December.
