S
M
T
W
T
F
S
26
82°
61°
27
81°
57°
28
75°
55°
29
76°
61°
30
77°
57°
31
76°
61°
1
82°
61°
2
82°
60°
3
79°
58°
4
75°
55°
5
75°
61°
6
78°
60°
7
75°
58°
8
75°
59°
9
74°
56°
10
75°
57°
11
76°
60°
12
80°
59°
13
74°
56°
14
74°
55°
15
76°
59°
16
76°
59°
17
82°
58°
18
82°
60°
19
81°
59°
20
76°
56°
21
73°
57°
22
78°
58°
23
81°
58°
24
78°
56°
25
82°
49°
26
76°
46°
27
72°
45°
28
71°
52°
29
73°
55°
30
80°
56°
31
80°
44°
1
79°
44°
2
67°
42°
3
66°
43°
4
65°
45°
5
66°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mentor
Mentor's August 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 42° and 61°. The average high for August is 76° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Mentor. See also: September | October | November.
