S
M
T
W
T
F
S
28
80°
56°
29
78°
53°
30
75°
53°
1
74°
52°
2
73°
52°
3
73°
53°
4
75°
53°
5
76°
56°
6
74°
58°
7
75°
56°
8
79°
54°
9
81°
61°
10
83°
63°
11
75°
61°
12
78°
62°
13
84°
62°
14
84°
63°
15
85°
60°
16
86°
62°
17
85°
63°
18
86°
64°
19
86°
59°
20
81°
63°
21
82°
64°
22
81°
60°
23
83°
55°
24
78°
54°
25
76°
55°
26
76°
55°
27
73°
54°
28
77°
62°
29
82°
61°
30
83°
62°
31
83°
63°
1
82°
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 73° to 86°, with overnight lows between 52° and 64°. The average high for July is 79° 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.
