S
M
T
W
T
F
S
30
77°
47°
31
77°
47°
1
76°
48°
2
80°
47°
3
82°
51°
4
81°
43°
5
72°
41°
6
72°
40°
7
72°
44°
8
71°
43°
9
71°
46°
10
74°
40°
11
74°
42°
12
70°
40°
13
72°
48°
14
75°
39°
15
77°
37°
16
67°
35°
17
65°
35°
18
64°
37°
19
65°
38°
20
66°
39°
21
71°
41°
22
72°
37°
23
65°
37°
24
63°
36°
25
63°
35°
26
62°
36°
27
62°
36°
28
61°
35°
29
61°
35°
30
63°
36°
1
Hist. Avg.
65°
35°
2
Hist. Avg.
65°
35°
3
Hist. Avg.
64°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Red Lodge
Red Lodge's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 35° and 51°. The average high for September is 70° with an average low of 40°. 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 Red Lodge. See also: October | November | December.
