S
M
T
W
T
F
S
26
81°
64°
27
83°
64°
28
78°
66°
29
74°
64°
30
78°
65°
31
85°
60°
1
85°
63°
2
79°
71°
3
77°
61°
4
82°
57°
5
87°
61°
6
87°
71°
7
79°
69°
8
84°
66°
9
81°
66°
10
81°
65°
11
81°
59°
12
80°
62°
13
79°
59°
14
74°
55°
15
76°
57°
16
76°
60°
17
77°
61°
18
78°
60°
19
78°
60°
20
77°
63°
21
80°
62°
22
80°
60°
23
79°
59°
24
75°
61°
25
76°
63°
26
80°
64°
27
81°
64°
28
79°
60°
29
73°
58°
30
72°
57°
31
72°
56°
1
73°
60°
2
74°
62°
3
74°
62°
4
75°
63°
5
77°
62°
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 72° to 81°, with overnight lows between 55° and 65°. The average high for August is 77° 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.
