S
M
T
W
T
F
S
30
82°
66°
31
87°
69°
1
90°
71°
2
94°
73°
3
94°
72°
4
87°
70°
5
82°
68°
6
79°
59°
7
80°
55°
8
82°
68°
9
79°
64°
10
78°
51°
11
78°
56°
12
81°
62°
13
81°
65°
14
84°
69°
15
75°
55°
16
73°
54°
17
73°
52°
18
68°
49°
19
68°
48°
20
70°
47°
21
69°
49°
22
68°
54°
23
68°
53°
24
75°
54°
25
76°
54°
26
75°
53°
27
75°
53°
28
76°
54°
29
76°
55°
30
75°
55°
1
76°
51°
2
74°
46°
3
61°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Constantine
Constantine's September 2026 forecast shows daily high temperatures ranging from 61° to 84°, with overnight lows between 44° and 69°. The average high for September is 74° 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 Constantine. See also: October | November | December.
