S
M
T
W
T
F
S
28
83°
60°
29
84°
64°
30
82°
65°
1
80°
67°
2
87°
69°
3
86°
65°
4
85°
65°
5
80°
61°
6
84°
63°
7
83°
64°
8
82°
67°
9
81°
62°
10
82°
62°
11
81°
62°
12
82°
63°
13
82°
62°
14
81°
62°
15
83°
63°
16
84°
64°
17
83°
64°
18
84°
63°
19
82°
63°
20
76°
62°
21
81°
63°
22
81°
63°
23
83°
65°
24
83°
62°
25
79°
58°
26
75°
62°
27
81°
61°
28
78°
62°
29
82°
61°
30
78°
57°
31
74°
55°
1
74°
55°
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 74° to 87°, with overnight lows between 55° and 69°. The average high for July is 81° with an average low of 62°. 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.
