S
M
T
W
T
F
S
28
84°
58°
29
87°
61°
30
90°
69°
1
90°
72°
2
90°
74°
3
89°
72°
4
80°
69°
5
80°
68°
6
77°
67°
7
80°
66°
8
85°
64°
9
86°
69°
10
80°
64°
11
82°
61°
12
83°
64°
13
89°
70°
14
89°
71°
15
85°
67°
16
83°
66°
17
81°
69°
18
81°
68°
19
82°
66°
20
83°
68°
21
83°
67°
22
80°
62°
23
77°
64°
24
85°
68°
25
85°
68°
26
86°
69°
27
83°
68°
28
82°
68°
29
81°
67°
30
78°
67°
31
78°
66°
1
77°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Niagara Falls
Niagara Falls's July 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 61° and 71°. The average high for July is 82° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Niagara Falls. See also: August | September | October.