S
M
T
W
T
F
S
28
85°
69°
29
92°
71°
30
94°
73°
1
93°
69°
2
92°
70°
3
89°
70°
4
89°
66°
5
87°
68°
6
86°
67°
7
89°
65°
8
82°
67°
9
83°
66°
10
90°
69°
11
89°
68°
12
86°
68°
13
87°
67°
14
89°
68°
15
89°
69°
16
87°
69°
17
86°
68°
18
89°
70°
19
90°
69°
20
88°
69°
21
86°
68°
22
89°
69°
23
90°
70°
24
90°
70°
25
85°
69°
26
85°
70°
27
86°
70°
28
89°
69°
29
90°
70°
30
89°
69°
31
89°
69°
1
88°
68°
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 82° to 94°, with overnight lows between 65° and 73°. The average high for July is 88° with an average low of 69°. 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.
