S
M
T
W
T
F
S
30
93°
71°
31
97°
72°
1
95°
73°
2
97°
73°
3
95°
73°
4
93°
73°
5
97°
73°
6
100°
73°
7
99°
72°
8
97°
73°
9
97°
72°
10
95°
72°
11
90°
75°
12
95°
73°
13
95°
75°
14
95°
72°
15
99°
72°
16
97°
72°
17
95°
70°
18
95°
66°
19
97°
68°
20
99°
70°
21
99°
70°
22
95°
70°
23
93°
66°
24
88°
65°
25
87°
65°
26
90°
67°
27
89°
68°
28
90°
67°
29
88°
69°
30
85°
67°
1
84°
67°
2
83°
61°
3
85°
67°
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 83° to 95°, with overnight lows between 61° and 70°. The average high for September is 88° with an average low of 67°. 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.
