S
M
T
W
T
F
S
30
72°
56°
31
74°
54°
1
75°
50°
2
74°
47°
3
72°
47°
4
74°
48°
5
77°
52°
6
74°
54°
7
77°
53°
8
71°
52°
9
75°
52°
10
79°
51°
11
78°
53°
12
77°
51°
13
76°
53°
14
78°
52°
15
77°
45°
16
73°
42°
17
67°
46°
18
66°
52°
19
75°
51°
20
74°
50°
21
75°
41°
22
73°
39°
23
Hist. Avg.
65°
49°
24
Hist. Avg.
64°
49°
25
Hist. Avg.
64°
48°
26
Hist. Avg.
63°
48°
27
Hist. Avg.
63°
48°
28
Hist. Avg.
63°
47°
29
Hist. Avg.
62°
47°
30
Hist. Avg.
62°
47°
1
Hist. Avg.
61°
46°
2
Hist. Avg.
61°
46°
3
Hist. Avg.
61°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Macomb
Macomb's September 2026 forecast shows daily high temperatures ranging from 66° to 79°, with overnight lows between 39° and 56°. The average high for September is 74° 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 Macomb. See also: October | November | December.
