S
M
T
W
T
F
S
28
89°
76°
29
90°
76°
30
90°
76°
1
90°
73°
2
93°
73°
3
91°
72°
4
94°
71°
5
89°
70°
6
88°
71°
7
90°
71°
8
92°
74°
9
93°
73°
10
90°
70°
11
89°
70°
12
91°
72°
13
90°
73°
14
94°
73°
15
93°
71°
16
87°
68°
17
94°
74°
18
95°
73°
19
96°
75°
20
96°
76°
21
95°
75°
22
96°
75°
23
97°
74°
24
97°
76°
25
96°
76°
26
97°
75°
27
97°
76°
28
96°
75°
29
97°
75°
30
96°
74°
31
96°
74°
1
94°
73°
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 87° to 97°, with overnight lows between 68° and 76°. The average high for July is 94° with an average low of 73°. 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.
