S
M
T
W
T
F
S
26
78°
57°
27
79°
59°
28
79°
62°
29
80°
63°
30
81°
65°
31
84°
66°
1
85°
65°
2
86°
66°
3
86°
66°
4
85°
59°
5
82°
59°
6
77°
58°
7
76°
57°
8
77°
58°
9
78°
58°
10
80°
59°
11
81°
63°
12
83°
64°
13
82°
65°
14
81°
66°
15
81°
65°
16
85°
59°
17
80°
61°
18
77°
57°
19
77°
58°
20
82°
63°
21
80°
62°
22
76°
62°
23
77°
60°
24
76°
59°
25
82°
62°
26
78°
57°
27
76°
58°
28
78°
63°
29
76°
64°
30
81°
63°
31
81°
63°
1
82°
62°
2
80°
61°
3
81°
59°
4
77°
59°
5
81°
61°
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 76° to 86°, with overnight lows between 57° and 66°. The average high for August is 80° with an average low of 61°. 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.
