S
M
T
W
T
F
S
30
80°
49°
31
75°
46°
1
71°
47°
2
71°
47°
3
72°
45°
4
70°
46°
5
70°
45°
6
71°
45°
7
72°
49°
8
75°
50°
9
70°
45°
10
69°
46°
11
70°
48°
12
72°
45°
13
71°
49°
14
72°
48°
15
68°
44°
16
67°
43°
17
65°
42°
18
67°
46°
19
65°
45°
20
74°
48°
21
65°
39°
22
64°
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 64° to 80°, with overnight lows between 39° and 50°. The average high for September is 70° with an average low of 46°. 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.
