S
M
T
W
T
F
S
31
62°
47°
1
61°
48°
2
66°
50°
3
71°
55°
4
71°
55°
5
70°
54°
6
67°
55°
7
68°
56°
8
69°
50°
9
64°
46°
10
64°
51°
11
65°
56°
12
69°
52°
13
65°
52°
14
69°
55°
15
72°
57°
16
73°
57°
17
71°
50°
18
66°
50°
19
65°
51°
20
68°
52°
21
71°
59°
22
75°
55°
23
70°
60°
24
68°
57°
25
69°
53°
26
70°
52°
27
73°
55°
28
73°
56°
29
72°
55°
30
71°
54°
1
72°
56°
2
74°
51°
3
68°
53°
4
70°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Frontenac Islands
Frontenac Islands's June 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 46° and 60°. The average high for June is 69° with an average low of 54°. 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 Frontenac Islands. See also: July | August | September.