S
M
T
W
T
F
S
31
69°
50°
1
74°
47°
2
69°
46°
3
67°
47°
4
67°
52°
5
71°
56°
6
74°
57°
7
72°
49°
8
72°
54°
9
73°
48°
10
71°
49°
11
71°
54°
12
76°
51°
13
74°
51°
14
72°
56°
15
77°
57°
16
78°
57°
17
77°
53°
18
73°
54°
19
74°
57°
20
75°
63°
21
79°
64°
22
84°
64°
23
85°
63°
24
86°
64°
25
86°
64°
26
85°
60°
27
85°
64°
28
84°
61°
29
82°
65°
30
85°
65°
1
84°
58°
2
80°
58°
3
76°
56°
4
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Niagara-on-the-Lake
Niagara-on-the-Lake's June 2026 forecast shows daily high temperatures ranging from 67° to 86°, with overnight lows between 46° and 65°. The average high for June is 77° with an average low of 56°. 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-on-the-Lake. See also: July | August | September.
