S
M
T
W
T
F
S
30
75°
58°
31
76°
57°
1
68°
54°
2
66°
54°
3
66°
53°
4
68°
51°
5
71°
56°
6
74°
56°
7
75°
55°
8
74°
56°
9
74°
56°
10
72°
55°
11
73°
55°
12
73°
54°
13
72°
56°
14
65°
42°
15
62°
43°
16
64°
43°
17
66°
45°
18
65°
42°
19
62°
46°
20
62°
46°
21
67°
50°
22
70°
48°
23
69°
40°
24
64°
38°
25
59°
44°
26
66°
48°
27
67°
48°
28
67°
42°
29
61°
37°
30
57°
37°
1
56°
43°
2
60°
44°
3
59°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint-David-d'Yamaska
Saint-David-d'Yamaska's September 2026 forecast shows daily high temperatures ranging from 56° to 76°, with overnight lows between 36° and 58°. The average high for September is 67° with an average low of 48°. 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 Saint-David-d'Yamaska. See also: October | November | December.
