S
M
T
W
T
F
S
28
72°
60°
29
74°
59°
30
72°
60°
1
74°
59°
2
81°
58°
3
87°
57°
4
88°
61°
5
86°
64°
6
89°
63°
7
92°
62°
8
91°
62°
9
90°
63°
10
86°
62°
11
87°
62°
12
84°
64°
13
89°
67°
14
93°
66°
15
97°
70°
16
95°
70°
17
89°
68°
18
91°
67°
19
93°
66°
20
90°
69°
21
90°
69°
22
89°
68°
23
95°
69°
24
95°
70°
25
96°
68°
26
93°
69°
27
95°
68°
28
91°
65°
29
91°
65°
30
92°
65°
31
97°
65°
1
97°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Ontario
Ontario's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July is ° with an average low of °. 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 Ontario. See also: August | September | October.
