S
M
T
W
T
F
S
26
79°
64°
27
81°
66°
28
79°
66°
29
79°
64°
30
80°
62°
31
85°
60°
1
88°
66°
2
80°
64°
3
77°
61°
4
83°
58°
5
88°
63°
6
85°
71°
7
80°
70°
8
82°
65°
9
82°
69°
10
78°
66°
11
77°
65°
12
78°
64°
13
74°
60°
14
75°
61°
15
73°
62°
16
74°
65°
17
72°
64°
18
75°
64°
19
74°
66°
20
72°
64°
21
74°
62°
22
71°
68°
23
81°
65°
24
74°
63°
25
75°
63°
26
79°
64°
27
79°
64°
28
77°
61°
29
72°
59°
30
71°
57°
31
71°
57°
1
72°
61°
2
74°
62°
3
74°
62°
4
75°
63°
5
77°
62°
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 71° to 82°, with overnight lows between 57° and 69°. The average high for August is 75° with an average low of 63°. 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.