S
M
T
W
T
F
S
27
69°
48°
28
68°
42°
29
62°
36°
30
59°
36°
1
58°
43°
2
62°
43°
3
61°
36°
4
56°
36°
5
57°
43°
6
58°
46°
7
65°
47°
8
66°
43°
9
67°
42°
10
56°
39°
11
53°
37°
12
55°
42°
13
57°
41°
14
59°
42°
15
60°
43°
16
61°
43°
17
60°
37°
18
61°
34°
19
57°
32°
20
49°
29°
21
48°
30°
22
48°
38°
23
49°
37°
24
56°
30°
25
49°
29°
26
47°
29°
27
48°
32°
28
48°
29°
29
47°
27°
30
54°
26°
31
41°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mont-Saint-Hilaire
Mont-Saint-Hilaire's October 2026 forecast shows daily high temperatures ranging from 41° to 69°, with overnight lows between 26° and 48°. The average high for October is 56° with an average low of 37°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Mont-Saint-Hilaire. See also: November | December | January.