S
M
T
W
T
F
S
30
93°
61°
31
97°
64°
1
97°
68°
2
95°
70°
3
95°
70°
4
98°
69°
5
101°
70°
6
101°
71°
7
98°
67°
8
99°
70°
9
98°
71°
10
99°
70°
11
96°
65°
12
95°
67°
13
97°
68°
14
93°
62°
15
91°
61°
16
90°
63°
17
84°
57°
18
82°
62°
19
84°
61°
20
87°
62°
21
87°
62°
22
86°
61°
23
87°
60°
24
86°
60°
25
86°
59°
26
81°
56°
27
75°
50°
28
75°
48°
29
73°
47°
30
76°
52°
1
78°
54°
2
80°
53°
3
72°
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 72° to 101°, with overnight lows between 47° and 71°. The average high for September is 88° with an average low of 61°. 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.
