S
M
T
W
T
F
S
30
73°
55°
31
73°
53°
1
74°
54°
2
74°
54°
3
75°
55°
4
76°
53°
5
75°
52°
6
74°
53°
7
72°
50°
8
72°
51°
9
71°
56°
10
72°
50°
11
71°
49°
12
71°
50°
13
72°
56°
14
74°
52°
15
76°
54°
16
77°
56°
17
78°
56°
18
78°
55°
19
77°
47°
20
75°
47°
21
67°
52°
22
68°
53°
23
71°
53°
24
73°
54°
25
74°
46°
26
72°
43°
27
70°
44°
28
65°
43°
29
65°
44°
30
64°
45°
1
64°
50°
2
Hist. Avg.
69°
49°
3
Hist. Avg.
69°
49°
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 78°, with overnight lows between 43° and 56°. The average high for September is 72° with an average low of 51°. 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.
