S
M
T
W
T
F
S
26
63°
38°
27
73°
38°
28
63°
52°
29
60°
46°
30
50°
44°
1
50°
39°
2
49°
31°
3
62°
31°
4
76°
42°
5
73°
49°
6
51°
44°
7
56°
35°
8
59°
37°
9
67°
46°
10
61°
39°
11
56°
34°
12
61°
48°
13
66°
45°
14
51°
46°
15
63°
46°
16
74°
53°
17
69°
52°
18
78°
64°
19
67°
47°
20
62°
51°
21
66°
50°
22
70°
53°
23
72°
52°
24
71°
54°
25
69°
49°
26
76°
55°
27
76°
56°
28
75°
56°
29
76°
57°
30
76°
56°
31
75°
53°
1
67°
50°
2
67°
52°
3
68°
56°
4
74°
57°
5
71°
55°
6
71°
53°
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 51° to 78°, with overnight lows between 45° and 64°. The average high for May is 70° 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 Geneseo. See also: June | July | August.
