S
M
T
W
T
F
S
26
79°
64°
27
81°
64°
28
83°
63°
29
82°
64°
30
83°
65°
31
82°
64°
1
80°
63°
2
76°
62°
3
76°
62°
4
77°
63°
5
77°
63°
6
78°
62°
7
80°
64°
8
82°
64°
9
83°
63°
10
82°
64°
11
81°
64°
12
82°
63°
13
82°
64°
14
85°
62°
15
85°
62°
16
83°
62°
17
81°
63°
18
83°
62°
19
81°
58°
20
83°
54°
21
75°
52°
22
74°
54°
23
75°
56°
24
76°
54°
25
75°
52°
26
74°
57°
27
76°
54°
28
74°
52°
29
74°
52°
30
75°
51°
31
73°
50°
1
73°
53°
2
74°
53°
3
73°
54°
4
73°
52°
5
74°
52°
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 73° to 85°, with overnight lows between 50° and 65°. The average high for August is 78° with an average low of 59°. 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.
