S
M
T
W
T
F
S
26
55°
27°
27
54°
36°
28
50°
27°
29
52°
28°
30
48°
25°
1
55°
21°
2
72°
32°
3
72°
34°
4
48°
36°
5
41°
27°
6
46°
28°
7
61°
23°
8
66°
32°
9
57°
34°
10
55°
32°
11
72°
34°
12
72°
43°
13
77°
36°
14
79°
55°
15
77°
46°
16
57°
41°
17
50°
41°
18
45°
39°
19
50°
34°
20
66°
30°
21
68°
46°
22
55°
46°
23
66°
46°
24
82°
46°
25
90°
54°
26
91°
59°
27
88°
66°
28
90°
64°
29
84°
61°
30
79°
63°
31
70°
59°
1
79°
61°
2
84°
63°
3
81°
63°
4
79°
57°
5
77°
57°
6
88°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Buffalo
Buffalo's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Buffalo. See also: June | July | August.
