S
M
T
W
T
F
S
30
92°
74°
31
91°
73°
1
89°
74°
2
88°
73°
3
90°
73°
4
91°
72°
5
89°
72°
6
87°
73°
7
88°
73°
8
91°
72°
9
91°
73°
10
90°
73°
11
92°
72°
12
88°
73°
13
89°
72°
14
89°
71°
15
88°
71°
16
89°
70°
17
89°
70°
18
88°
69°
19
87°
70°
20
87°
70°
21
88°
66°
22
87°
65°
23
88°
62°
24
85°
64°
25
86°
67°
26
85°
66°
27
87°
66°
28
89°
67°
29
88°
66°
30
82°
66°
1
88°
65°
2
89°
63°
3
88°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Clinton
Clinton's September 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 62° and 74°. The average high for September is 88° with an average low of 69°. 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 Clinton. See also: October | November | December.
