S
M
T
W
T
F
S
30
71°
62°
31
76°
65°
1
81°
68°
2
78°
61°
3
75°
54°
4
74°
52°
5
71°
51°
6
72°
51°
7
75°
48°
8
76°
52°
9
73°
64°
10
68°
56°
11
70°
42°
12
80°
52°
13
68°
55°
14
64°
46°
15
70°
46°
16
67°
52°
17
69°
55°
18
66°
51°
19
60°
49°
20
66°
49°
21
64°
51°
22
65°
54°
23
67°
54°
24
68°
52°
25
68°
53°
26
67°
54°
27
71°
55°
28
68°
52°
29
65°
45°
30
64°
51°
1
64°
51°
2
60°
48°
3
59°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port Elgin
Port Elgin's September 2026 forecast shows daily high temperatures ranging from 59° to 71°, with overnight lows between 45° and 55°. The average high for September is 65° 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 Port Elgin. See also: October | November | December.