S
M
T
W
T
F
S
31
80°
61°
1
84°
54°
2
84°
54°
3
84°
61°
4
88°
68°
5
86°
68°
6
83°
65°
7
84°
68°
8
85°
66°
9
87°
67°
10
84°
65°
11
86°
66°
12
85°
63°
13
82°
60°
14
84°
61°
15
83°
62°
16
76°
57°
17
76°
58°
18
77°
61°
19
77°
61°
20
78°
65°
21
79°
66°
22
81°
67°
23
81°
63°
24
84°
66°
25
83°
68°
26
87°
68°
27
82°
66°
28
81°
62°
29
80°
61°
30
81°
63°
1
81°
68°
2
82°
69°
3
83°
68°
4
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Geneseo
Geneseo's June 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 54° and 69°. The average high for June is 82° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Geneseo. See also: July | August | September.