S
M
T
W
T
F
S
26
86°
72°
27
90°
72°
28
93°
72°
29
90°
70°
30
88°
64°
31
90°
63°
1
90°
68°
2
86°
70°
3
88°
72°
4
88°
70°
5
86°
68°
6
88°
68°
7
88°
68°
8
91°
72°
9
91°
68°
10
92°
71°
11
95°
71°
12
95°
72°
13
96°
74°
14
98°
74°
15
95°
72°
16
95°
71°
17
95°
70°
18
91°
69°
19
90°
69°
20
90°
68°
21
89°
68°
22
90°
69°
23
88°
66°
24
86°
65°
25
89°
68°
26
90°
69°
27
90°
69°
28
89°
68°
29
91°
69°
30
89°
68°
31
82°
68°
1
83°
67°
2
84°
68°
3
84°
68°
4
86°
67°
5
87°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Buffalo
Buffalo's August 2026 forecast shows daily high temperatures ranging from 82° to 98°, with overnight lows between 65° and 74°. The average high for August is 90° 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 Buffalo. See also: September | October | November.