S
M
T
W
T
F
S
31
70°
47°
1
71°
44°
2
75°
55°
3
72°
53°
4
78°
49°
5
82°
50°
6
90°
61°
7
87°
51°
8
73°
46°
9
87°
55°
10
72°
46°
11
68°
44°
12
75°
45°
13
65°
44°
14
73°
38°
15
76°
46°
16
85°
48°
17
69°
46°
18
76°
46°
19
72°
50°
20
75°
45°
21
61°
49°
22
68°
50°
23
73°
49°
24
73°
48°
25
77°
57°
26
80°
59°
27
86°
56°
28
73°
52°
29
74°
53°
30
78°
54°
1
83°
57°
2
85°
62°
3
86°
60°
4
93°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Buffalo
Buffalo's June 2026 forecast shows daily high temperatures ranging from 61° to 93°, with overnight lows between 48° and 63°. The average high for June is 78° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Buffalo. See also: July | August | September.