S
M
T
W
T
F
S
27
68°
51°
28
67°
45°
29
66°
45°
30
67°
46°
1
67°
48°
2
66°
44°
3
61°
44°
4
60°
45°
5
64°
47°
6
65°
44°
7
63°
47°
8
65°
50°
9
66°
45°
10
66°
47°
11
64°
48°
12
65°
47°
13
64°
45°
14
64°
44°
15
63°
48°
16
63°
43°
17
62°
44°
18
61°
46°
19
62°
44°
20
61°
43°
21
58°
45°
22
57°
41°
23
54°
40°
24
54°
39°
25
55°
38°
26
53°
41°
27
54°
39°
28
52°
38°
29
52°
37°
30
53°
37°
31
51°
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 68°, with overnight lows between 37° and 51°. The average high for October is 61° with an average low of 44°. 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.
