S
M
T
W
T
F
S
26
90°
72°
27
90°
72°
28
93°
71°
29
90°
73°
30
87°
68°
31
87°
63°
1
88°
70°
2
79°
69°
3
82°
69°
4
85°
67°
5
84°
71°
6
89°
70°
7
87°
70°
8
90°
69°
9
89°
69°
10
91°
71°
11
90°
72°
12
90°
69°
13
94°
73°
14
94°
74°
15
94°
74°
16
94°
71°
17
96°
73°
18
90°
70°
19
93°
73°
20
92°
71°
21
86°
69°
22
90°
68°
23
93°
69°
24
89°
68°
25
88°
71°
26
91°
68°
27
89°
67°
28
87°
68°
29
88°
68°
30
90°
67°
31
89°
70°
1
88°
67°
2
84°
70°
3
85°
66°
4
90°
70°
5
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oneonta
Oneonta's August 2026 forecast shows daily high temperatures ranging from 84° to 93°, with overnight lows between 66° and 73°. The average high for August is 89° with an average low of 69°. 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 Oneonta. See also: September | October | November.
