S
M
T
W
T
F
S
30
89°
65°
31
87°
61°
1
86°
60°
2
85°
59°
3
86°
60°
4
87°
62°
5
86°
61°
6
86°
59°
7
79°
54°
8
79°
56°
9
Hist. Avg.
81°
60°
10
Hist. Avg.
81°
60°
11
Hist. Avg.
81°
59°
12
Hist. Avg.
80°
59°
13
Hist. Avg.
80°
58°
14
Hist. Avg.
80°
58°
15
Hist. Avg.
79°
58°
16
Hist. Avg.
79°
57°
17
Hist. Avg.
79°
57°
18
Hist. Avg.
78°
57°
19
Hist. Avg.
78°
56°
20
Hist. Avg.
78°
56°
21
Hist. Avg.
77°
56°
22
Hist. Avg.
77°
55°
23
Hist. Avg.
76°
55°
24
Hist. Avg.
76°
54°
25
Hist. Avg.
76°
54°
26
Hist. Avg.
75°
54°
27
Hist. Avg.
75°
53°
28
Hist. Avg.
75°
53°
29
Hist. Avg.
74°
53°
30
Hist. Avg.
74°
52°
1
Hist. Avg.
74°
52°
2
Hist. Avg.
73°
52°
3
Hist. Avg.
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clinton
Clinton's September 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 54° and 65°. The average high for September is 85° with an average low of 60°. 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.