S
M
T
W
T
F
S
30
73°
57°
31
75°
59°
1
76°
58°
2
74°
58°
3
74°
57°
4
73°
56°
5
73°
58°
6
75°
58°
7
74°
57°
8
73°
57°
9
72°
56°
10
73°
57°
11
71°
56°
12
70°
55°
13
71°
56°
14
72°
54°
15
68°
54°
16
70°
53°
17
69°
53°
18
68°
52°
19
70°
54°
20
69°
52°
21
69°
51°
22
58°
50°
23
67°
52°
24
67°
52°
25
65°
39°
26
66°
38°
27
59°
42°
28
58°
46°
29
59°
37°
30
58°
35°
1
51°
33°
2
49°
35°
3
51°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Calumet
Calumet's September 2026 forecast shows daily high temperatures ranging from 49° to 76°, with overnight lows between 33° and 59°. The average high for September is 67° with an average low of 51°. 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 Calumet. See also: October | November | December.
