S
M
T
W
T
F
S
28
90°
59°
29
91°
60°
30
91°
63°
1
92°
62°
2
91°
64°
3
90°
66°
4
90°
65°
5
92°
60°
6
91°
60°
7
90°
59°
8
90°
62°
9
86°
61°
10
94°
67°
11
95°
68°
12
Hist. Avg.
90°
62°
13
Hist. Avg.
90°
62°
14
Hist. Avg.
90°
62°
15
Hist. Avg.
90°
63°
16
Hist. Avg.
90°
63°
17
Hist. Avg.
91°
63°
18
Hist. Avg.
91°
63°
19
Hist. Avg.
91°
63°
20
Hist. Avg.
91°
63°
21
Hist. Avg.
91°
63°
22
Hist. Avg.
91°
63°
23
Hist. Avg.
91°
63°
24
Hist. Avg.
91°
63°
25
Hist. Avg.
91°
63°
26
Hist. Avg.
92°
63°
27
Hist. Avg.
92°
63°
28
Hist. Avg.
92°
63°
29
Hist. Avg.
92°
63°
30
Hist. Avg.
92°
63°
31
Hist. Avg.
92°
63°
1
Hist. Avg.
92°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Ontario
Ontario's July 2026 forecast shows daily high temperatures ranging from 86° to 95°, with overnight lows between 59° and 68°. The average high for July is 91° with an average low of 63°. 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.
