S
M
T
W
T
F
S
28
75°
60°
29
73°
61°
30
75°
64°
1
81°
68°
2
78°
64°
3
76°
63°
4
75°
62°
5
76°
63°
6
75°
68°
7
72°
63°
8
74°
63°
9
75°
64°
10
72°
63°
11
74°
64°
12
74°
64°
13
73°
63°
14
73°
64°
15
74°
64°
16
73°
63°
17
74°
64°
18
73°
64°
19
74°
63°
20
75°
65°
21
74°
64°
22
73°
64°
23
73°
65°
24
74°
64°
25
77°
66°
26
78°
66°
27
78°
65°
28
75°
66°
29
74°
66°
30
76°
67°
31
79°
68°
1
80°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Niagara
Niagara's July 2026 forecast shows daily high temperatures ranging from 72° to 81°, with overnight lows between 60° and 68°. The average high for July is 75° with an average low of 64°. 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. See also: August | September | October.