S
M
T
W
T
F
S
31
67°
57°
1
67°
56°
2
68°
55°
3
71°
58°
4
76°
58°
5
73°
48°
6
72°
59°
7
78°
61°
8
79°
53°
9
75°
51°
10
73°
58°
11
72°
56°
12
74°
57°
13
80°
59°
14
81°
63°
15
82°
64°
16
82°
62°
17
81°
59°
18
75°
58°
19
78°
58°
20
78°
58°
21
80°
59°
22
82°
58°
23
76°
56°
24
74°
59°
25
76°
65°
26
80°
62°
27
80°
61°
28
78°
55°
29
77°
60°
30
79°
66°
1
85°
66°
2
82°
65°
3
83°
58°
4
77°
61°
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 67° to 85°, with overnight lows between 48° and 66°. The average high for June is 77° with an average low of 59°. 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.