S
M
T
W
T
F
S
31
75°
57°
1
75°
57°
2
70°
55°
3
73°
56°
4
77°
59°
5
77°
60°
6
76°
59°
7
73°
58°
8
69°
57°
9
70°
60°
10
76°
62°
11
78°
61°
12
77°
59°
13
71°
56°
14
71°
58°
15
72°
57°
16
71°
55°
17
72°
62°
18
76°
61°
19
75°
55°
20
77°
57°
21
81°
57°
22
82°
63°
23
83°
56°
24
80°
57°
25
75°
58°
26
75°
59°
27
76°
64°
28
80°
57°
29
81°
65°
30
82°
58°
1
77°
57°
2
77°
56°
3
78°
58°
4
78°
58°
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 69° to 83°, with overnight lows between 55° and 65°. The average high for June is 76° 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 Falls. See also: July | August | September.