S
M
T
W
T
F
S
30
81°
60°
31
82°
62°
1
80°
62°
2
80°
60°
3
82°
52°
4
75°
52°
5
74°
57°
6
75°
60°
7
81°
57°
8
75°
56°
9
73°
58°
10
74°
59°
11
79°
58°
12
81°
59°
13
80°
59°
14
81°
58°
15
80°
56°
16
76°
56°
17
74°
49°
18
73°
49°
19
70°
46°
20
69°
45°
21
67°
46°
22
69°
52°
23
69°
47°
24
73°
48°
25
72°
53°
26
74°
53°
27
75°
54°
28
75°
51°
29
74°
50°
30
72°
48°
1
69°
49°
2
73°
52°
3
67°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Walkerton
Walkerton's September 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 43° and 62°. The average high for September is 75° 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 Walkerton. See also: October | November | December.
