S
M
T
W
T
F
S
30
82°
64°
31
84°
67°
1
89°
66°
2
86°
65°
3
81°
66°
4
81°
62°
5
79°
58°
6
79°
59°
7
79°
57°
8
76°
60°
9
79°
61°
10
75°
53°
11
71°
54°
12
72°
53°
13
70°
52°
14
72°
50°
15
69°
47°
16
76°
53°
17
74°
52°
18
70°
48°
19
74°
52°
20
74°
53°
21
73°
52°
22
71°
50°
23
69°
47°
24
71°
50°
25
72°
50°
26
72°
48°
27
63°
45°
28
61°
43°
29
61°
43°
30
60°
41°
1
59°
40°
2
60°
43°
3
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Big Rapids
Big Rapids's September 2026 forecast shows daily high temperatures ranging from 59° to 86°, with overnight lows between 40° and 66°. The average high for September is 72° with an average low of 52°. 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 Big Rapids. See also: October | November | December.
