S
M
T
W
T
F
S
30
86°
65°
31
86°
65°
1
87°
64°
2
86°
65°
3
86°
64°
4
85°
63°
5
85°
64°
6
86°
65°
7
87°
65°
8
87°
64°
9
84°
63°
10
84°
62°
11
85°
64°
12
86°
64°
13
86°
62°
14
73°
51°
15
72°
59°
16
74°
59°
17
73°
53°
18
78°
51°
19
72°
49°
20
76°
50°
21
76°
54°
22
78°
57°
23
79°
53°
24
74°
49°
25
71°
54°
26
73°
56°
27
79°
48°
28
75°
46°
29
68°
45°
30
68°
51°
1
71°
54°
2
77°
54°
3
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Macomb
Macomb's September 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 45° and 65°. The average high for September is 79° with an average low of 57°. 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 Macomb. See also: October | November | December.
