S
M
T
W
T
F
S
26
76°
42°
27
74°
55°
28
64°
49°
29
61°
39°
30
58°
34°
1
56°
34°
2
60°
34°
3
73°
47°
4
83°
40°
5
56°
46°
6
57°
35°
7
65°
29°
8
69°
44°
9
76°
50°
10
69°
37°
11
68°
41°
12
81°
48°
13
70°
42°
14
73°
55°
15
81°
57°
16
86°
59°
17
78°
64°
18
76°
56°
19
71°
53°
20
75°
57°
21
77°
58°
22
80°
58°
23
79°
59°
24
79°
58°
25
77°
55°
26
81°
61°
27
81°
62°
28
79°
61°
29
81°
61°
30
78°
60°
31
75°
57°
1
75°
57°
2
73°
62°
3
80°
63°
4
80°
62°
5
79°
63°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Geneseo
Geneseo's May 2026 forecast shows daily high temperatures ranging from 70° to 86°, with overnight lows between 42° and 64°. The average high for May is 78° with an average low of 58°. 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 Geneseo. See also: June | July | August.
