S
M
T
W
T
F
S
26
80°
45°
27
69°
59°
28
62°
53°
29
61°
43°
30
63°
37°
1
60°
41°
2
59°
41°
3
73°
42°
4
78°
56°
5
56°
44°
6
62°
41°
7
64°
46°
8
70°
49°
9
78°
54°
10
67°
44°
11
64°
43°
12
66°
49°
13
72°
53°
14
75°
55°
15
77°
56°
16
76°
52°
17
71°
55°
18
75°
53°
19
77°
56°
20
73°
53°
21
74°
50°
22
69°
49°
23
69°
49°
24
71°
50°
25
70°
51°
26
69°
50°
27
71°
51°
28
72°
54°
29
73°
56°
30
77°
61°
31
74°
58°
1
74°
54°
2
75°
57°
3
77°
60°
4
77°
62°
5
80°
63°
6
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rochester
Rochester's May 2026 forecast shows daily high temperatures ranging from 56° to 80°, with overnight lows between 41° and 64°. The average high for May is 72° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Rochester. See also: June | July | August.