S
M
T
W
T
F
S
26
92°
71°
27
91°
70°
28
92°
71°
29
93°
72°
30
93°
72°
31
92°
71°
1
91°
71°
2
89°
70°
3
91°
69°
4
92°
71°
5
92°
71°
6
91°
72°
7
92°
67°
8
91°
68°
9
88°
68°
10
92°
69°
11
89°
68°
12
90°
67°
13
92°
70°
14
92°
69°
15
91°
70°
16
91°
69°
17
87°
68°
18
91°
69°
19
91°
69°
20
90°
68°
21
91°
69°
22
86°
67°
23
86°
67°
24
91°
66°
25
91°
68°
26
90°
67°
27
90°
64°
28
85°
65°
29
86°
64°
30
85°
63°
31
86°
65°
1
85°
67°
2
84°
64°
3
83°
62°
4
82°
61°
5
82°
60°
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 93°, with overnight lows between 60° and 72°. The average high for August is 89° with an average low of 68°. 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.