S
M
T
W
T
F
S
30
81°
67°
31
81°
67°
1
79°
70°
2
80°
70°
3
84°
67°
4
79°
64°
5
77°
62°
6
76°
63°
7
78°
64°
8
80°
63°
9
81°
66°
10
80°
63°
11
80°
59°
12
73°
58°
13
73°
58°
14
77°
59°
15
70°
58°
16
70°
62°
17
74°
57°
18
69°
54°
19
69°
54°
20
70°
58°
21
73°
61°
22
76°
62°
23
77°
61°
24
76°
59°
25
74°
58°
26
74°
59°
27
75°
60°
28
74°
59°
29
75°
57°
30
67°
52°
1
64°
52°
2
66°
57°
3
72°
58°
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 64° to 84°, with overnight lows between 52° and 70°. The average high for September is 75° with an average low of 61°. 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.
