S
M
T
W
T
F
S
30
77°
54°
31
76°
48°
1
75°
43°
2
68°
45°
3
67°
50°
4
72°
54°
5
74°
51°
6
75°
43°
7
67°
44°
8
69°
47°
9
73°
49°
10
66°
51°
11
73°
50°
12
72°
50°
13
71°
49°
14
63°
42°
15
63°
40°
16
64°
40°
17
62°
48°
18
65°
40°
19
62°
50°
20
68°
48°
21
69°
41°
22
63°
38°
23
60°
39°
24
59°
38°
25
57°
36°
26
63°
43°
27
65°
44°
28
Hist. Avg.
64°
39°
29
Hist. Avg.
64°
39°
30
Hist. Avg.
63°
38°
1
Hist. Avg.
63°
38°
2
Hist. Avg.
63°
38°
3
Hist. Avg.
62°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Saint-André-Avellin
Saint-André-Avellin's September 2026 forecast shows daily high temperatures ranging from 57° to 77°, with overnight lows between 36° and 54°. The average high for September is 68° with an average low of 45°. 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-André-Avellin. See also: October | November | December.