S
M
T
W
T
F
S
30
74°
53°
31
76°
51°
1
78°
50°
2
74°
55°
3
66°
59°
4
79°
60°
5
71°
56°
6
68°
53°
7
78°
54°
8
76°
51°
9
66°
46°
10
82°
61°
11
70°
46°
12
73°
41°
13
63°
54°
14
67°
52°
15
70°
41°
16
75°
53°
17
68°
52°
18
74°
50°
19
65°
41°
20
58°
42°
21
67°
44°
22
65°
43°
23
65°
40°
24
72°
36°
25
76°
55°
26
70°
52°
27
60°
52°
28
57°
52°
29
64°
52°
30
68°
50°
1
73°
55°
2
72°
52°
3
69°
51°
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 57° to 76°, with overnight lows between 50° and 55°. The average high for September is 68° 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.
