S
M
T
W
T
F
S
31
72°
45°
1
69°
48°
2
76°
45°
3
80°
48°
4
79°
53°
5
84°
54°
6
80°
61°
7
74°
57°
8
82°
54°
9
84°
59°
10
81°
69°
11
87°
69°
12
80°
62°
13
82°
60°
14
74°
54°
15
65°
50°
16
75°
55°
17
73°
56°
18
75°
61°
19
73°
57°
20
72°
52°
21
75°
56°
22
66°
53°
23
78°
55°
24
78°
57°
25
73°
61°
26
76°
60°
27
76°
61°
28
79°
66°
29
80°
67°
30
81°
66°
1
80°
67°
2
80°
64°
3
81°
67°
4
80°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Niagara Falls
Niagara Falls's June 2026 forecast shows daily high temperatures ranging from 66° to 81°, with overnight lows between 53° and 67°. The average high for June is 78° with an average low of 62°. 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 Falls. See also: July | August | September.