S
M
T
W
T
F
S
30
75°
53°
31
75°
51°
1
77°
56°
2
75°
57°
3
79°
64°
4
76°
60°
5
71°
56°
6
74°
51°
7
78°
60°
8
73°
55°
9
69°
64°
10
72°
47°
11
67°
47°
12
73°
57°
13
75°
54°
14
68°
51°
15
67°
52°
16
66°
49°
17
64°
51°
18
65°
50°
19
66°
46°
20
61°
40°
21
59°
50°
22
60°
49°
23
66°
50°
24
68°
49°
25
68°
49°
26
67°
47°
27
62°
45°
28
65°
48°
29
67°
49°
30
68°
50°
1
69°
49°
2
67°
48°
3
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint-Augustin
Saint-Augustin's September 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 40° and 64°. The average high for September is 67° with an average low of 50°. 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-Augustin. See also: October | November | December.
