S
M
T
W
T
F
S
26
82°
66°
27
84°
67°
28
87°
67°
29
87°
66°
30
84°
65°
31
81°
62°
1
81°
66°
2
86°
66°
3
87°
67°
4
87°
67°
5
88°
66°
6
88°
67°
7
85°
60°
8
87°
64°
9
87°
59°
10
82°
57°
11
81°
58°
12
82°
59°
13
82°
59°
14
83°
60°
15
80°
64°
16
82°
64°
17
83°
61°
18
83°
63°
19
82°
64°
20
83°
64°
21
81°
63°
22
82°
63°
23
84°
59°
24
85°
63°
25
86°
62°
26
86°
63°
27
87°
62°
28
86°
59°
29
85°
61°
30
81°
62°
31
83°
61°
1
79°
55°
2
79°
55°
3
78°
54°
4
78°
53°
5
79°
54°
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 78° to 88°, with overnight lows between 53° and 67°. The average high for August is 83° with an average low of 62°. 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.