S
M
T
W
T
F
S
30
72°
59°
31
76°
58°
1
75°
55°
2
78°
51°
3
73°
50°
4
76°
52°
5
79°
57°
6
76°
58°
7
76°
56°
8
72°
56°
9
76°
55°
10
80°
55°
11
79°
57°
12
77°
55°
13
76°
57°
14
78°
55°
15
77°
48°
16
72°
46°
17
66°
51°
18
67°
55°
19
75°
54°
20
74°
54°
21
75°
45°
22
73°
42°
23
71°
44°
24
71°
47°
25
Hist. Avg.
65°
44°
26
Hist. Avg.
64°
44°
27
Hist. Avg.
64°
44°
28
Hist. Avg.
63°
44°
29
Hist. Avg.
63°
43°
30
Hist. Avg.
62°
43°
1
Hist. Avg.
62°
43°
2
Hist. Avg.
62°
42°
3
Hist. Avg.
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in South Dundas
South Dundas's September 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 42° and 59°. The average high for September is 75° with an average low of 53°. 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 South Dundas. See also: October | November | December.
