S
M
T
W
T
F
S
30
74°
51°
31
72°
48°
1
75°
53°
2
73°
58°
3
72°
58°
4
69°
57°
5
66°
48°
6
69°
49°
7
72°
50°
8
71°
48°
9
70°
55°
10
72°
53°
11
70°
50°
12
70°
51°
13
66°
50°
14
63°
39°
15
64°
44°
16
68°
49°
17
68°
44°
18
61°
41°
19
62°
38°
20
68°
47°
21
70°
48°
22
70°
49°
23
69°
47°
24
68°
45°
25
68°
44°
26
69°
45°
27
68°
46°
28
68°
43°
29
61°
38°
30
56°
36°
1
55°
34°
2
58°
44°
3
65°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sherbrooke
Sherbrooke's September 2026 forecast shows daily high temperatures ranging from 55° to 75°, with overnight lows between 34° and 58°. The average high for September is 67° with an average low of 47°. 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 Sherbrooke. See also: October | November | December.
