S
M
T
W
T
F
S
26
84°
67°
27
84°
64°
28
83°
63°
29
84°
66°
30
85°
65°
31
86°
64°
1
87°
63°
2
84°
63°
3
84°
64°
4
83°
62°
5
84°
63°
6
84°
64°
7
85°
64°
8
84°
65°
9
84°
68°
10
85°
68°
11
84°
63°
12
85°
65°
13
90°
65°
14
90°
62°
15
84°
61°
16
84°
62°
17
85°
64°
18
90°
63°
19
84°
62°
20
83°
60°
21
84°
61°
22
84°
64°
23
83°
61°
24
82°
61°
25
83°
66°
26
84°
67°
27
88°
66°
28
89°
66°
29
90°
60°
30
89°
59°
31
82°
60°
1
82°
62°
2
84°
65°
3
86°
63°
4
82°
64°
5
85°
64°
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 90°, with overnight lows between 59° and 68°. The average high for August is 85° with an average low of 64°. 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.