S
M
T
W
T
F
S
27
81°
54°
28
73°
61°
29
81°
60°
30
N/A
1
71°
46°
2
71°
46°
3
71°
48°
4
72°
48°
5
72°
48°
6
73°
55°
7
64°
47°
8
62°
48°
9
62°
47°
10
66°
50°
11
65°
48°
12
64°
49°
13
64°
50°
14
64°
51°
15
63°
50°
16
62°
49°
17
62°
46°
18
58°
43°
19
57°
42°
20
57°
41°
21
56°
42°
22
55°
43°
23
58°
40°
24
58°
43°
25
60°
43°
26
55°
41°
27
51°
41°
28
52°
39°
29
57°
43°
30
59°
47°
31
58°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Longueil-Sainte-Marie
Longueil-Sainte-Marie's October 2026 forecast shows daily high temperatures ranging from 51° to 73°, with overnight lows between 39° and 55°. The average high for October is 62° with an average low of 46°. 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 Longueil-Sainte-Marie. See also: November | December | January.
