S
M
T
W
T
F
S
30
82°
54°
31
81°
51°
1
70°
52°
2
69°
48°
3
66°
45°
4
65°
47°
5
75°
52°
6
76°
52°
7
77°
46°
8
70°
43°
9
69°
50°
10
72°
44°
11
63°
41°
12
62°
39°
13
61°
40°
14
60°
38°
15
61°
40°
16
65°
42°
17
69°
45°
18
70°
47°
19
69°
45°
20
70°
44°
21
66°
46°
22
68°
47°
23
68°
47°
24
71°
48°
25
71°
39°
26
69°
37°
27
56°
44°
28
61°
37°
29
64°
37°
30
53°
31°
1
54°
32°
2
56°
29°
3
53°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Central Butte
Central Butte's September 2026 forecast shows daily high temperatures ranging from 53° to 82°, with overnight lows between 29° and 54°. The average high for September is 67° with an average low of 43°. 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 Central Butte. See also: October | November | December.