S
M
T
W
T
F
S
31
77°
48°
1
74°
49°
2
78°
49°
3
79°
47°
4
82°
57°
5
85°
55°
6
84°
66°
7
85°
65°
8
87°
68°
9
83°
73°
10
86°
73°
11
88°
74°
12
83°
63°
13
83°
57°
14
85°
57°
15
71°
53°
16
77°
51°
17
81°
59°
18
79°
64°
19
79°
57°
20
79°
56°
21
80°
57°
22
82°
65°
23
78°
58°
24
80°
53°
25
82°
60°
26
77°
67°
27
79°
69°
28
83°
70°
29
92°
74°
30
96°
72°
1
99°
72°
2
98°
74°
3
97°
72°
4
90°
69°
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 90° to 99°, with overnight lows between 69° and 74°. The average high for June is 95° with an average low of 72°. 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.