S
M
T
W
T
F
S
31
78°
51°
1
74°
56°
2
78°
53°
3
81°
50°
4
86°
61°
5
86°
65°
6
88°
68°
7
85°
67°
8
88°
68°
9
86°
68°
10
86°
66°
11
85°
67°
12
85°
66°
13
87°
67°
14
85°
66°
15
86°
65°
16
84°
66°
17
83°
61°
18
81°
65°
19
82°
67°
20
87°
66°
21
86°
61°
22
80°
59°
23
80°
59°
24
87°
67°
25
88°
67°
26
88°
66°
27
83°
62°
28
84°
66°
29
83°
67°
30
84°
67°
1
83°
66°
2
82°
62°
3
83°
62°
4
85°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Mentor
Mentor's June 2026 forecast shows daily high temperatures ranging from 80° to 88°, with overnight lows between 59° and 68°. The average high for June is 85° with an average low of 65°. 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 Mentor. See also: July | August | September.