S
M
T
W
T
F
S
30
80°
54°
31
77°
64°
1
87°
68°
2
70°
66°
3
88°
67°
4
87°
68°
5
81°
62°
6
80°
58°
7
80°
52°
8
82°
51°
9
85°
56°
10
87°
67°
11
82°
55°
12
82°
50°
13
82°
64°
14
76°
46°
15
74°
52°
16
81°
62°
17
84°
62°
18
80°
61°
19
76°
57°
20
72°
54°
21
73°
51°
22
68°
52°
23
71°
52°
24
71°
53°
25
72°
52°
26
73°
48°
27
74°
54°
28
76°
54°
29
76°
51°
30
70°
47°
1
68°
50°
2
70°
52°
3
73°
48°
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 68° to 84°, with overnight lows between 46° and 64°. The average high for September is 74° with an average low of 53°. 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.
