S
M
T
W
T
F
S
31
79°
68°
1
85°
66°
2
80°
64°
3
82°
56°
4
85°
69°
5
88°
71°
6
89°
73°
7
84°
71°
8
83°
72°
9
85°
72°
10
92°
74°
11
94°
74°
12
90°
72°
13
90°
68°
14
85°
68°
15
87°
67°
16
83°
65°
17
84°
66°
18
86°
68°
19
83°
70°
20
88°
70°
21
88°
66°
22
82°
66°
23
87°
71°
24
90°
72°
25
91°
72°
26
90°
71°
27
86°
71°
28
88°
70°
29
89°
71°
30
87°
71°
1
88°
70°
2
87°
71°
3
86°
70°
4
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Frontenac
Frontenac's June 2026 forecast shows daily high temperatures ranging from 82° to 94°, with overnight lows between 65° and 74°. The average high for June is 87° with an average low of 70°. 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. See also: July | August | September.
