S
M
T
W
T
F
S
26
86°
68°
27
85°
67°
28
84°
68°
29
85°
67°
30
85°
68°
31
87°
68°
1
86°
67°
2
88°
68°
3
89°
65°
4
85°
61°
5
86°
66°
6
88°
62°
7
87°
60°
8
86°
61°
9
86°
60°
10
87°
61°
11
90°
67°
12
92°
67°
13
92°
66°
14
91°
66°
15
87°
65°
16
85°
66°
17
87°
62°
18
86°
62°
19
85°
60°
20
85°
60°
21
87°
63°
22
90°
65°
23
90°
64°
24
91°
64°
25
91°
65°
26
89°
64°
27
90°
65°
28
89°
66°
29
89°
65°
30
88°
60°
31
87°
57°
1
83°
57°
2
82°
58°
3
83°
59°
4
85°
61°
5
88°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rochester
Rochester's August 2026 forecast shows daily high temperatures ranging from 82° to 92°, with overnight lows between 57° and 68°. The average high for August is 87° with an average low of 64°. 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 Rochester. See also: September | October | November.
