S
M
T
W
T
F
S
26
87°
67°
27
84°
60°
28
79°
64°
29
83°
65°
30
82°
62°
31
82°
66°
1
84°
61°
2
82°
57°
3
81°
59°
4
80°
58°
5
81°
59°
6
81°
59°
7
83°
58°
8
82°
59°
9
86°
61°
10
86°
63°
11
84°
64°
12
86°
65°
13
87°
66°
14
86°
64°
15
86°
58°
16
85°
57°
17
79°
58°
18
79°
60°
19
78°
57°
20
79°
55°
21
78°
59°
22
81°
61°
23
84°
62°
24
85°
63°
25
86°
56°
26
85°
55°
27
78°
54°
28
77°
54°
29
77°
59°
30
81°
62°
31
83°
62°
1
84°
56°
2
83°
54°
3
82°
60°
4
82°
60°
5
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ottawa Lake
Ottawa Lake's August 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 54° and 67°. The average high for August is 82° with an average low of 60°. 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 Lake. See also: September | October | November.
