S
M
T
W
T
F
S
30
69°
64°
31
76°
65°
1
84°
69°
2
81°
66°
3
74°
61°
4
71°
61°
5
75°
57°
6
74°
54°
7
73°
54°
8
76°
53°
9
73°
67°
10
73°
51°
11
71°
47°
12
80°
54°
13
71°
60°
14
65°
48°
15
71°
48°
16
70°
55°
17
70°
50°
18
69°
49°
19
65°
49°
20
69°
52°
21
64°
45°
22
66°
42°
23
70°
43°
24
70°
43°
25
66°
45°
26
69°
45°
27
69°
49°
28
67°
51°
29
70°
58°
30
71°
60°
1
68°
53°
2
64°
51°
3
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Goderich
Goderich's September 2026 forecast shows daily high temperatures ranging from 64° to 71°, with overnight lows between 43° and 60°. The average high for September is 68° 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 Goderich. See also: October | November | December.
