S
M
T
W
T
F
S
26
90°
72°
27
91°
74°
28
85°
68°
29
86°
65°
30
81°
62°
31
71°
62°
1
81°
62°
2
82°
58°
3
83°
58°
4
71°
61°
5
74°
55°
6
79°
51°
7
78°
60°
8
79°
53°
9
84°
64°
10
83°
66°
11
85°
71°
12
84°
68°
13
76°
66°
14
73°
66°
15
79°
70°
16
78°
61°
17
80°
56°
18
83°
63°
19
79°
57°
20
82°
52°
21
82°
62°
22
79°
55°
23
78°
49°
24
79°
55°
25
79°
61°
26
80°
59°
27
81°
55°
28
83°
49°
29
78°
64°
30
81°
66°
31
87°
67°
1
86°
65°
2
85°
68°
3
86°
68°
4
89°
68°
5
86°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Clear Lake
Clear Lake's August 2026 forecast shows daily high temperatures ranging from 85° to 89°, with overnight lows between 65° and 68°. The average high for August is 86° with an average low of 67°. 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 Clear Lake. See also: September | October | November.
