S
M
T
W
T
F
S
30
79°
64°
31
80°
64°
1
83°
64°
2
75°
59°
3
78°
58°
4
72°
54°
5
71°
52°
6
67°
51°
7
74°
55°
8
76°
57°
9
74°
57°
10
69°
55°
11
70°
51°
12
71°
50°
13
73°
52°
14
74°
55°
15
75°
55°
16
75°
54°
17
69°
54°
18
74°
55°
19
74°
56°
20
71°
55°
21
71°
54°
22
73°
55°
23
74°
53°
24
71°
49°
25
62°
44°
26
63°
45°
27
66°
48°
28
70°
51°
29
70°
51°
30
71°
50°
1
71°
51°
2
70°
51°
3
69°
50°
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 62° to 83°, with overnight lows between 44° and 64°. The average high for September is 72° with an average low of 54°. 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.
