S
M
T
W
T
F
S
30
88°
71°
31
91°
68°
1
94°
71°
2
96°
72°
3
95°
72°
4
94°
71°
5
95°
69°
6
89°
69°
7
87°
68°
8
89°
67°
9
91°
69°
10
89°
68°
11
90°
67°
12
87°
65°
13
86°
63°
14
88°
64°
15
86°
67°
16
84°
67°
17
81°
66°
18
83°
67°
19
81°
66°
20
79°
63°
21
81°
64°
22
81°
64°
23
82°
63°
24
85°
65°
25
85°
65°
26
78°
63°
27
77°
64°
28
76°
64°
29
77°
63°
30
79°
62°
1
76°
62°
2
75°
61°
3
76°
61°
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 75° to 96°, with overnight lows between 61° and 72°. The average high for September is 85° with an average low of 66°. 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.
