S
M
T
W
T
F
S
31
62°
47°
1
68°
42°
2
75°
46°
3
82°
47°
4
84°
59°
5
85°
66°
6
70°
61°
7
72°
48°
8
79°
55°
9
83°
61°
10
87°
62°
11
84°
61°
12
82°
63°
13
86°
61°
14
81°
58°
15
78°
58°
16
81°
61°
17
79°
53°
18
78°
58°
19
78°
54°
20
72°
56°
21
76°
50°
22
70°
50°
23
72°
51°
24
73°
59°
25
75°
59°
26
80°
52°
27
72°
53°
28
73°
53°
29
73°
54°
30
74°
53°
1
73°
52°
2
76°
59°
3
81°
60°
4
82°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Saint-Hyacinthe
Saint-Hyacinthe's June 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 48° and 66°. The average high for June is 78° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Saint-Hyacinthe. See also: July | August | September.