S
M
T
W
T
F
S
28
86°
58°
29
87°
57°
30
76°
59°
1
90°
67°
2
92°
69°
3
86°
68°
4
80°
57°
5
82°
56°
6
84°
59°
7
85°
60°
8
89°
63°
9
71°
64°
10
81°
62°
11
81°
60°
12
83°
58°
13
86°
61°
14
89°
68°
15
81°
65°
16
77°
54°
17
77°
58°
18
68°
56°
19
75°
52°
20
78°
58°
21
71°
57°
22
74°
57°
23
75°
56°
24
77°
59°
25
76°
57°
26
75°
58°
27
78°
59°
28
77°
60°
29
78°
58°
30
75°
60°
31
79°
60°
1
75°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Ottawa / Rockcliffe Airport
Ottawa / Rockcliffe Airport's July 2026 forecast shows daily high temperatures ranging from 68° to 79°, with overnight lows between 52° and 60°. The average high for July is 76° with an average low of 57°. 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 Ottawa / Rockcliffe Airport. See also: August | September | October.