S
M
T
W
T
F
S
28
71°
62°
29
71°
62°
30
86°
66°
1
91°
71°
2
87°
70°
3
87°
72°
4
76°
71°
5
73°
69°
6
70°
60°
7
66°
58°
8
81°
59°
9
81°
69°
10
79°
67°
11
80°
66°
12
82°
64°
13
87°
70°
14
88°
71°
15
86°
67°
16
82°
66°
17
85°
69°
18
82°
68°
19
83°
66°
20
84°
68°
21
84°
68°
22
82°
62°
23
79°
64°
24
86°
68°
25
86°
68°
26
87°
69°
27
86°
68°
28
83°
68°
29
83°
67°
30
80°
67°
31
79°
66°
1
78°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Niagara-on-the-Lake
Niagara-on-the-Lake's July 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 62° and 71°. The average high for July is 83° 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-on-the-Lake. See also: August | September | October.
