S
M
T
W
T
F
S
30
80°
56°
31
79°
56°
1
69°
60°
2
74°
61°
3
76°
61°
4
81°
63°
5
73°
58°
6
73°
51°
7
80°
54°
8
80°
56°
9
78°
67°
10
84°
57°
11
75°
46°
12
77°
56°
13
79°
60°
14
77°
56°
15
76°
60°
16
75°
55°
17
71°
51°
18
70°
50°
19
69°
48°
20
67°
50°
21
71°
49°
22
66°
53°
23
67°
52°
24
70°
52°
25
71°
51°
26
73°
49°
27
66°
46°
28
68°
48°
29
73°
51°
30
73°
51°
1
72°
50°
2
71°
51°
3
70°
49°
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 66° to 84°, with overnight lows between 46° and 67°. The average high for September is 73° with an average low of 52°. 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.
