S
M
T
W
T
F
S
27
59°
49°
28
64°
45°
29
59°
40°
30
60°
47°
1
64°
47°
2
60°
44°
3
64°
46°
4
65°
46°
5
66°
47°
6
65°
44°
7
61°
40°
8
59°
45°
9
64°
44°
10
60°
42°
11
52°
42°
12
57°
40°
13
50°
37°
14
50°
35°
15
48°
32°
16
48°
32°
17
49°
38°
18
49°
36°
19
48°
33°
20
47°
35°
21
47°
36°
22
50°
34°
23
45°
42°
24
60°
34°
25
62°
30°
26
47°
29°
27
45°
28°
28
46°
27°
29
44°
27°
30
47°
30°
31
50°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Saint-Hyacinthe
Saint-Hyacinthe's October 2026 forecast shows daily high temperatures ranging from 44° to 66°, with overnight lows between 27° and 49°. The average high for October is 55° with an average low of 38°. 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 Saint-Hyacinthe. See also: November | December | January.
