S
M
T
W
T
F
S
30
78°
57°
31
71°
64°
1
78°
65°
2
73°
65°
3
78°
60°
4
74°
56°
5
69°
52°
6
69°
51°
7
71°
51°
8
68°
49°
9
69°
54°
10
72°
52°
11
72°
49°
12
68°
47°
13
68°
47°
14
70°
47°
15
65°
48°
16
67°
52°
17
68°
44°
18
63°
42°
19
63°
42°
20
66°
47°
21
71°
51°
22
72°
51°
23
72°
50°
24
71°
47°
25
69°
47°
26
69°
48°
27
70°
49°
28
70°
48°
29
69°
43°
30
61°
39°
1
59°
39°
2
62°
45°
3
67°
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 59° to 78°, with overnight lows between 39° and 65°. The average high for September is 69° with an average low of 49°. 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.
