S
M
T
W
T
F
S
26
87°
70°
27
88°
70°
28
89°
71°
29
90°
70°
30
87°
69°
31
87°
69°
1
84°
66°
2
81°
64°
3
82°
68°
4
81°
68°
5
85°
67°
6
87°
68°
7
87°
68°
8
86°
69°
9
85°
69°
10
86°
68°
11
86°
68°
12
87°
67°
13
86°
67°
14
90°
64°
15
88°
64°
16
85°
65°
17
83°
64°
18
84°
62°
19
86°
58°
20
80°
57°
21
79°
56°
22
78°
58°
23
78°
58°
24
79°
59°
25
80°
58°
26
80°
59°
27
86°
65°
28
86°
62°
29
83°
57°
30
80°
57°
31
77°
58°
1
77°
56°
2
78°
54°
3
76°
56°
4
78°
60°
5
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Geneseo
Geneseo's August 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 54° and 71°. The average high for August is 83° with an average low of 63°. 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 Geneseo. See also: September | October | November.
