S
M
T
W
T
F
S
30
89°
59°
31
88°
61°
1
90°
62°
2
89°
63°
3
87°
59°
4
88°
60°
5
89°
62°
6
89°
62°
7
88°
63°
8
90°
62°
9
88°
61°
10
87°
61°
11
84°
60°
12
83°
61°
13
80°
60°
14
82°
60°
15
84°
59°
16
77°
60°
17
80°
59°
18
78°
58°
19
77°
55°
20
79°
56°
21
81°
58°
22
82°
57°
23
74°
57°
24
75°
58°
25
82°
59°
26
77°
59°
27
76°
57°
28
77°
55°
29
73°
55°
30
75°
46°
1
74°
44°
2
70°
43°
3
69°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chain-O-Lakes
Chain-O-Lakes's September 2026 forecast shows daily high temperatures ranging from 69° to 90°, with overnight lows between 43° and 63°. The average high for September is 81° with an average low of 58°. 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 Chain-O-Lakes. See also: October | November | December.
