S
M
T
W
T
F
S
31
73°
56°
1
69°
54°
2
69°
49°
3
70°
51°
4
72°
49°
5
75°
52°
6
78°
47°
7
71°
51°
8
73°
50°
9
71°
52°
10
72°
56°
11
72°
56°
12
75°
61°
13
81°
62°
14
83°
61°
15
83°
61°
16
79°
59°
17
76°
57°
18
77°
60°
19
78°
61°
20
76°
64°
21
81°
64°
22
84°
65°
23
86°
64°
24
84°
65°
25
85°
62°
26
82°
56°
27
77°
56°
28
76°
60°
29
74°
64°
30
77°
66°
1
85°
65°
2
85°
65°
3
82°
60°
4
86°
61°
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 69° to 86°, with overnight lows between 47° and 66°. The average high for June is 78° 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 Niagara-on-the-Lake. See also: July | August | September.
