S
M
T
W
T
F
S
31
77°
61°
1
82°
62°
2
89°
58°
3
79°
61°
4
80°
56°
5
76°
55°
6
90°
53°
7
93°
67°
8
82°
59°
9
94°
59°
10
80°
59°
11
71°
56°
12
74°
52°
13
62°
44°
14
74°
43°
15
N/A
16
72°
54°
17
65°
46°
18
65°
46°
19
72°
50°
20
73°
51°
21
69°
55°
22
70°
51°
23
72°
54°
24
75°
54°
25
73°
54°
26
76°
58°
27
74°
54°
28
77°
57°
29
72°
54°
30
70°
52°
1
72°
55°
2
72°
52°
3
70°
53°
4
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Niagara
Niagara's June 2026 forecast shows daily high temperatures ranging from 65° to 77°, with overnight lows between 46° and 58°. The average high for June is 72° with an average low of 53°. 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 Niagara. See also: July | August | September.