S
M
T
W
T
F
S
30
85°
46°
31
86°
45°
1
85°
44°
2
88°
45°
3
89°
47°
4
88°
43°
5
86°
35°
6
77°
38°
7
78°
40°
8
76°
38°
9
76°
42°
10
82°
38°
11
84°
39°
12
78°
36°
13
78°
43°
14
82°
31°
15
83°
30°
16
72°
29°
17
69°
28°
18
69°
31°
19
71°
33°
20
72°
34°
21
78°
35°
22
76°
30°
23
70°
28°
24
68°
27°
25
67°
29°
26
68°
30°
27
68°
29°
28
66°
28°
29
67°
29°
30
70°
34°
1
Hist. Avg.
68°
37°
2
Hist. Avg.
67°
37°
3
Hist. Avg.
66°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lame Deer
Lame Deer's September 2026 forecast shows daily high temperatures ranging from 66° to 89°, with overnight lows between 27° and 47°. The average high for September is 77° with an average low of 35°. 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 Lame Deer. See also: October | November | December.
