S
M
T
W
T
F
S
30
70°
56°
31
72°
57°
1
78°
57°
2
77°
52°
3
75°
47°
4
74°
54°
5
76°
45°
6
73°
45°
7
67°
52°
8
67°
53°
9
69°
50°
10
68°
45°
11
66°
52°
12
72°
43°
13
68°
46°
14
70°
50°
15
72°
52°
16
64°
42°
17
69°
41°
18
63°
44°
19
Hist. Avg.
68°
46°
20
Hist. Avg.
68°
45°
21
Hist. Avg.
68°
45°
22
Hist. Avg.
67°
45°
23
Hist. Avg.
67°
44°
24
Hist. Avg.
66°
44°
25
Hist. Avg.
66°
44°
26
Hist. Avg.
66°
43°
27
Hist. Avg.
65°
43°
28
Hist. Avg.
65°
43°
29
Hist. Avg.
65°
42°
30
Hist. Avg.
64°
42°
1
Hist. Avg.
64°
42°
2
Hist. Avg.
63°
41°
3
Hist. Avg.
63°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Montcalm
Montcalm's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 41° and 57°. The average high for September is 71° with an average low of 49°. 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 Montcalm. See also: October | November | December.
