S
M
T
W
T
F
S
26
93°
66°
27
93°
68°
28
86°
68°
29
88°
64°
30
N/A
31
71°
60°
1
85°
60°
2
82°
63°
3
84°
65°
4
79°
54°
5
76°
57°
6
80°
62°
7
80°
65°
8
83°
62°
9
82°
59°
10
82°
63°
11
82°
61°
12
82°
60°
13
79°
57°
14
75°
58°
15
75°
64°
16
82°
63°
17
74°
61°
18
76°
59°
19
79°
63°
20
80°
63°
21
79°
58°
22
73°
55°
23
73°
54°
24
74°
56°
25
73°
53°
26
74°
61°
27
78°
60°
28
81°
62°
29
80°
61°
30
81°
62°
31
78°
62°
1
80°
59°
2
72°
51°
3
71°
60°
4
81°
63°
5
80°
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 85°, with overnight lows between 51° and 65°. The average high for August is 78° with an average low of 60°. 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.