S
M
T
W
T
F
S
28
78°
61°
29
82°
55°
30
82°
53°
1
75°
53°
2
73°
52°
3
74°
54°
4
75°
58°
5
75°
59°
6
79°
53°
7
76°
55°
8
76°
52°
9
77°
53°
10
76°
61°
11
76°
55°
12
81°
53°
13
76°
54°
14
76°
55°
15
78°
56°
16
83°
60°
17
83°
62°
18
82°
62°
19
82°
61°
20
81°
61°
21
83°
62°
22
84°
55°
23
81°
58°
24
84°
57°
25
79°
55°
26
76°
53°
27
75°
53°
28
76°
54°
29
77°
54°
30
76°
55°
31
76°
54°
1
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mississauga
Mississauga's July 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 52° and 62°. The average high for July is 78° with an average low of 56°. 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 Mississauga. See also: August | September | October.
