S
M
T
W
T
F
S
26
47°
25°
27
37°
30°
28
51°
27°
29
56°
30°
30
57°
25°
1
60°
31°
2
72°
34°
3
73°
40°
4
55°
32°
5
45°
23°
6
56°
21°
7
66°
30°
8
70°
39°
9
62°
40°
10
70°
44°
11
82°
43°
12
71°
41°
13
85°
42°
14
76°
49°
15
73°
39°
16
71°
42°
17
57°
40°
18
47°
37°
19
58°
34°
20
72°
36°
21
65°
36°
22
60°
43°
23
73°
37°
24
85°
43°
25
89°
54°
26
90°
57°
27
88°
58°
28
84°
56°
29
80°
58°
30
80°
55°
31
70°
47°
1
71°
44°
2
75°
55°
3
72°
53°
4
78°
49°
5
82°
50°
6
90°
61°
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.
