S
M
T
W
T
F
S
30
74°
33°
31
71°
36°
1
73°
40°
2
74°
41°
3
73°
40°
4
76°
41°
5
78°
39°
6
66°
36°
7
67°
39°
8
68°
34°
9
66°
38°
10
67°
39°
11
66°
31°
12
64°
31°
13
64°
29°
14
62°
30°
15
65°
32°
16
68°
35°
17
72°
31°
18
72°
38°
19
74°
37°
20
73°
40°
21
73°
39°
22
72°
40°
23
73°
41°
24
75°
40°
25
73°
39°
26
68°
36°
27
62°
34°
28
60°
32°
29
61°
36°
30
58°
35°
1
57°
39°
2
67°
37°
3
57°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Deer Lodge
Deer Lodge's September 2026 forecast shows daily high temperatures ranging from 57° to 78°, with overnight lows between 27° and 41°. The average high for September is 68° with an average low of 36°. 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 Deer Lodge. See also: October | November | December.
