S
M
T
W
T
F
S
30
66°
56°
31
67°
57°
1
68°
57°
2
67°
56°
3
73°
57°
4
69°
57°
5
70°
56°
6
69°
57°
7
66°
56°
8
67°
55°
9
70°
56°
10
70°
55°
11
71°
56°
12
72°
56°
13
71°
55°
14
71°
56°
15
70°
54°
16
65°
53°
17
65°
52°
18
64°
53°
19
66°
52°
20
65°
53°
21
67°
49°
22
68°
47°
23
64°
47°
24
63°
46°
25
67°
45°
26
62°
48°
27
62°
50°
28
66°
51°
29
66°
47°
30
65°
41°
1
65°
45°
2
59°
45°
3
62°
44°
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 59° to 73°, with overnight lows between 41° and 57°. The average high for September is 67° with an average low of 52°. 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.
