S
M
T
W
T
F
S
30
72°
64°
31
80°
65°
1
87°
71°
2
88°
69°
3
83°
66°
4
75°
66°
5
77°
57°
6
76°
53°
7
75°
51°
8
78°
55°
9
85°
68°
10
80°
57°
11
77°
58°
12
75°
65°
13
80°
56°
14
71°
57°
15
83°
65°
16
77°
63°
17
75°
59°
18
70°
53°
19
67°
49°
20
70°
52°
21
64°
51°
22
68°
53°
23
67°
50°
24
70°
55°
25
63°
51°
26
70°
54°
27
72°
54°
28
71°
53°
29
66°
52°
30
69°
54°
1
69°
52°
2
64°
52°
3
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Conneaut Lakeshore
Conneaut Lakeshore's September 2026 forecast shows daily high temperatures ranging from 63° to 83°, with overnight lows between 49° and 65°. The average high for September is 71° with an average low of 55°. 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 Conneaut Lakeshore. See also: October | November | December.
