S
M
T
W
T
F
S
27
77°
53°
28
77°
53°
29
76°
52°
30
76°
53°
1
75°
52°
2
75°
52°
3
74°
50°
4
74°
50°
5
73°
49°
6
73°
50°
7
72°
49°
8
72°
48°
9
71°
49°
10
72°
47°
11
68°
44°
12
69°
44°
13
66°
43°
14
60°
42°
15
59°
43°
16
61°
45°
17
66°
36°
18
64°
32°
19
51°
32°
20
52°
38°
21
57°
34°
22
58°
28°
23
53°
30°
24
48°
33°
25
47°
28°
26
47°
27°
27
45°
25°
28
43°
31°
29
46°
29°
30
47°
32°
31
48°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Clear Lake
Clear Lake's October 2026 forecast shows daily high temperatures ranging from 43° to 77°, with overnight lows between 21° and 53°. The average high for October is 63° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Clear Lake. See also: November | December | January.