S
M
T
W
T
F
S
30
79°
68°
31
86°
72°
1
91°
70°
2
91°
72°
3
84°
72°
4
90°
72°
5
81°
63°
6
81°
55°
7
79°
55°
8
81°
61°
9
81°
63°
10
77°
57°
11
81°
54°
12
82°
57°
13
66°
45°
14
70°
43°
15
73°
61°
16
70°
61°
17
66°
61°
18
70°
57°
19
68°
61°
20
66°
57°
21
64°
52°
22
63°
52°
23
66°
50°
24
69°
53°
25
69°
47°
26
68°
51°
27
70°
51°
28
74°
53°
29
72°
53°
30
69°
54°
1
71°
54°
2
72°
53°
3
69°
52°
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 74°, with overnight lows between 47° and 54°. The average high for September is 70° 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.
