S
M
T
W
T
F
S
30
77°
46°
31
81°
41°
1
85°
52°
2
92°
48°
3
89°
55°
4
97°
48°
5
84°
55°
6
87°
48°
7
85°
51°
8
77°
39°
9
81°
40°
10
90°
41°
11
76°
50°
12
75°
45°
13
87°
42°
14
71°
44°
15
73°
36°
16
75°
41°
17
72°
43°
18
84°
49°
19
61°
50°
20
57°
51°
21
72°
45°
22
80°
41°
23
75°
47°
24
83°
43°
25
82°
46°
26
77°
47°
27
72°
41°
28
69°
44°
29
79°
39°
30
78°
48°
1
66°
41°
2
74°
48°
3
70°
40°
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 78°, with overnight lows between 40° and 48°. The average high for September is 72° with an average low of 44°. 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.
