S
M
T
W
T
F
S
30
80°
61°
31
82°
57°
1
82°
57°
2
82°
63°
3
81°
55°
4
88°
69°
5
88°
67°
6
87°
64°
7
74°
57°
8
80°
53°
9
83°
54°
10
85°
55°
11
86°
65°
12
87°
60°
13
87°
52°
14
73°
52°
15
81°
64°
16
87°
64°
17
87°
59°
18
80°
57°
19
81°
58°
20
81°
60°
21
79°
57°
22
77°
59°
23
76°
59°
24
75°
57°
25
77°
58°
26
74°
49°
27
76°
53°
28
71°
44°
29
64°
42°
30
67°
45°
1
71°
44°
2
76°
50°
3
72°
41°
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 87°, with overnight lows between 41° and 64°. The average high for September is 77° with an average low of 54°. 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.
