S
M
T
W
T
F
S
30
76°
59°
31
76°
58°
1
78°
59°
2
80°
52°
3
79°
49°
4
71°
54°
5
71°
58°
6
79°
51°
7
75°
49°
8
69°
49°
9
71°
53°
10
70°
56°
11
71°
57°
12
78°
56°
13
77°
54°
14
75°
47°
15
67°
46°
16
66°
50°
17
67°
46°
18
66°
45°
19
67°
42°
20
65°
42°
21
64°
48°
22
65°
50°
23
70°
44°
24
68°
50°
25
70°
52°
26
66°
52°
27
72°
50°
28
72°
44°
29
71°
46°
30
61°
48°
1
64°
47°
2
70°
49°
3
60°
38°
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 60° to 80°, with overnight lows between 38° and 59°. The average high for September is 70° with an average low of 50°. 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.
