S
M
T
W
T
F
S
30
71°
57°
31
71°
58°
1
72°
61°
2
76°
62°
3
79°
63°
4
78°
62°
5
78°
63°
6
77°
62°
7
76°
61°
8
72°
60°
9
74°
60°
10
76°
61°
11
76°
60°
12
75°
59°
13
77°
59°
14
77°
60°
15
76°
60°
16
76°
59°
17
75°
59°
18
75°
58°
19
74°
57°
20
74°
58°
21
75°
54°
22
74°
47°
23
72°
45°
24
69°
47°
25
72°
50°
26
73°
52°
27
72°
54°
28
72°
56°
29
74°
56°
30
75°
52°
1
73°
42°
2
67°
50°
3
67°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Manistee
Manistee's September 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 42° and 63°. The average high for September is 74° with an average low of 56°. 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 Manistee. See also: October | November | December.