S
M
T
W
T
F
S
26
77°
53°
27
86°
61°
28
87°
59°
29
88°
56°
30
80°
50°
31
82°
52°
1
79°
51°
2
76°
50°
3
78°
52°
4
79°
52°
5
81°
53°
6
83°
55°
7
84°
59°
8
86°
60°
9
86°
60°
10
88°
61°
11
86°
60°
12
87°
55°
13
81°
51°
14
77°
49°
15
76°
50°
16
78°
53°
17
77°
50°
18
76°
52°
19
79°
58°
20
81°
59°
21
86°
60°
22
86°
60°
23
87°
50°
24
85°
48°
25
74°
49°
26
73°
53°
27
73°
57°
28
74°
58°
29
80°
56°
30
83°
55°
31
81°
48°
1
79°
53°
2
79°
53°
3
80°
54°
4
80°
53°
5
81°
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 73° to 88°, with overnight lows between 48° and 61°. The average high for August is 81° with an average low of 54°. 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.