S
M
T
W
T
F
S
30
87°
66°
31
87°
67°
1
86°
67°
2
87°
66°
3
83°
65°
4
83°
65°
5
84°
60°
6
83°
59°
7
83°
59°
8
85°
62°
9
86°
65°
10
85°
65°
11
86°
55°
12
80°
63°
13
83°
55°
14
82°
57°
15
81°
56°
16
84°
58°
17
85°
61°
18
86°
62°
19
85°
56°
20
81°
53°
21
76°
53°
22
76°
54°
23
77°
58°
24
76°
58°
25
77°
59°
26
75°
59°
27
79°
58°
28
74°
54°
29
79°
52°
30
80°
52°
1
80°
55°
2
79°
54°
3
77°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Forest City
Forest City's September 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 46° and 67°. The average high for September is 82° with an average low of 59°. 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 Forest City. See also: October | November | December.
