S
M
T
W
T
F
S
31
77°
54°
1
79°
58°
2
77°
59°
3
77°
59°
4
78°
58°
5
78°
59°
6
79°
59°
7
77°
58°
8
82°
58°
9
80°
57°
10
84°
58°
11
85°
59°
12
86°
60°
13
83°
61°
14
86°
58°
15
81°
55°
16
82°
56°
17
86°
58°
18
82°
56°
19
82°
59°
20
87°
57°
21
82°
60°
22
82°
59°
23
83°
57°
24
85°
57°
25
85°
58°
26
86°
57°
27
84°
57°
28
85°
58°
29
83°
59°
30
83°
59°
1
85°
58°
2
86°
59°
3
88°
62°
4
89°
64°
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 77° to 89°, with overnight lows between 54° and 64°. The average high for June is 83° with an average low of 58°. 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.