S
M
T
W
T
F
S
30
90°
68°
31
87°
69°
1
98°
73°
2
88°
70°
3
91°
71°
4
91°
71°
5
82°
65°
6
85°
60°
7
83°
60°
8
86°
58°
9
89°
67°
10
90°
73°
11
83°
67°
12
81°
68°
13
88°
71°
14
81°
59°
15
81°
55°
16
85°
58°
17
89°
67°
18
88°
69°
19
84°
63°
20
85°
69°
21
74°
63°
22
67°
56°
23
64°
55°
24
63°
53°
25
70°
55°
26
69°
56°
27
69°
56°
28
71°
54°
29
71°
56°
30
75°
55°
1
72°
54°
2
71°
53°
3
70°
58°
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 63° to 75°, with overnight lows between 53° and 63°. The average high for September is 70° with an average low of 56°. 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.
