S
M
T
W
T
F
S
28
82°
67°
29
91°
70°
30
91°
76°
1
94°
76°
2
94°
74°
3
95°
69°
4
91°
70°
5
86°
72°
6
76°
68°
7
84°
66°
8
86°
65°
9
88°
67°
10
88°
71°
11
80°
69°
12
84°
61°
13
86°
59°
14
89°
61°
15
92°
68°
16
88°
70°
17
91°
67°
18
92°
71°
19
79°
61°
20
82°
56°
21
87°
69°
22
71°
55°
23
76°
51°
24
76°
56°
25
81°
54°
26
83°
63°
27
83°
66°
28
82°
66°
29
79°
62°
30
87°
61°
31
89°
70°
1
75°
64°
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 75° to 89°, with overnight lows between 61° and 70°. The average high for July is 84° with an average low of 65°. 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.
