S
M
T
W
T
F
S
28
73°
57°
29
72°
60°
30
78°
53°
1
72°
53°
2
72°
54°
3
73°
58°
4
74°
58°
5
76°
58°
6
76°
54°
7
79°
55°
8
82°
61°
9
81°
56°
10
78°
55°
11
76°
54°
12
76°
54°
13
75°
55°
14
75°
54°
15
76°
56°
16
77°
63°
17
82°
60°
18
82°
60°
19
77°
59°
20
80°
63°
21
79°
62°
22
79°
61°
23
83°
59°
24
82°
56°
25
79°
59°
26
77°
57°
27
79°
62°
28
81°
62°
29
77°
63°
30
84°
57°
31
83°
62°
1
83°
61°
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 84°, with overnight lows between 53° and 63°. The average high for July is 78° with an average low of 58°. 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.
