S
M
T
W
T
F
S
26
85°
69°
27
88°
71°
28
84°
67°
29
67°
59°
30
63°
56°
1
64°
53°
2
77°
57°
3
82°
60°
4
83°
67°
5
85°
67°
6
71°
50°
7
70°
55°
8
77°
60°
9
81°
64°
10
79°
64°
11
84°
63°
12
80°
64°
13
79°
62°
14
81°
61°
15
83°
67°
16
83°
67°
17
82°
66°
18
83°
68°
19
84°
68°
20
84°
67°
21
81°
68°
22
78°
65°
23
78°
66°
24
84°
69°
25
81°
66°
26
78°
62°
27
77°
62°
28
80°
67°
29
81°
69°
30
85°
68°
31
86°
70°
1
87°
69°
2
88°
71°
3
89°
72°
4
89°
72°
5
88°
70°
6
86°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Clear Lake
Clear Lake's May 2026 forecast shows daily high temperatures ranging from 64° to 89°, with overnight lows between 50° and 72°. The average high for May is 81° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Clear Lake. See also: June | July | August.
