S
M
T
W
T
F
S
26
82°
63°
27
82°
60°
28
79°
57°
29
75°
60°
30
80°
61°
31
77°
59°
1
78°
58°
2
78°
55°
3
77°
54°
4
75°
53°
5
76°
55°
6
78°
54°
7
81°
57°
8
76°
53°
9
80°
55°
10
81°
61°
11
82°
55°
12
81°
58°
13
81°
63°
14
84°
62°
15
80°
54°
16
81°
51°
17
73°
50°
18
73°
53°
19
74°
52°
20
72°
52°
21
70°
57°
22
73°
59°
23
72°
61°
24
79°
58°
25
81°
51°
26
78°
48°
27
70°
49°
28
70°
48°
29
71°
53°
30
70°
59°
31
77°
59°
1
76°
58°
2
78°
53°
3
76°
51°
4
75°
55°
5
76°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ottawa West
Ottawa West's August 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 48° and 63°. The average high for August is 77° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Ottawa West. See also: September | October | November.
