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
79°
59°
17
77°
58°
18
71°
59°
19
75°
56°
20
79°
54°
21
76°
61°
22
67°
50°
23
78°
51°
24
80°
52°
25
82°
62°
26
81°
63°
27
82°
65°
28
78°
66°
29
72°
61°
30
77°
60°
31
81°
63°
1
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Ottawa
Ottawa's July 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 60° and 66°. The average high for July is 80° 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 Ottawa. See also: August | September | October.
