S
M
T
W
T
F
S
30
66°
51°
31
68°
52°
1
71°
49°
2
74°
45°
3
68°
44°
4
73°
45°
5
74°
49°
6
74°
51°
7
73°
50°
8
70°
49°
9
71°
50°
10
75°
50°
11
73°
49°
12
74°
48°
13
72°
50°
14
74°
49°
15
73°
44°
16
72°
38°
17
64°
42°
18
63°
48°
19
68°
47°
20
72°
48°
21
70°
43°
22
71°
38°
23
66°
39°
24
60°
45°
25
67°
46°
26
Hist. Avg.
60°
37°
27
Hist. Avg.
60°
37°
28
Hist. Avg.
59°
37°
29
Hist. Avg.
59°
37°
30
Hist. Avg.
58°
36°
1
Hist. Avg.
58°
36°
2
Hist. Avg.
58°
36°
3
Hist. Avg.
57°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sherbrooke
Sherbrooke's September 2026 forecast shows daily high temperatures ranging from 60° to 75°, with overnight lows between 38° and 52°. The average high for September is 70° 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.
