S
M
T
W
T
F
S
27
50°
34°
28
50°
37°
29
51°
32°
30
50°
31°
1
50°
38°
2
51°
37°
3
49°
36°
4
49°
30°
5
50°
35°
6
48°
34°
7
47°
35°
8
49°
33°
9
52°
35°
10
55°
33°
11
55°
32°
12
54°
36°
13
50°
36°
14
51°
35°
15
50°
27°
16
46°
24°
17
42°
26°
18
41°
26°
19
42°
25°
20
40°
24°
21
41°
23°
22
40°
30°
23
40°
30°
24
43°
25°
25
41°
27°
26
38°
26°
27
39°
28°
28
41°
31°
29
41°
23°
30
42°
20°
31
36°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Houston
Houston's October 2026 forecast shows daily high temperatures ranging from 36° to 55°, with overnight lows between 20° and 38°. The average high for October is 46° with an average low of 30°. 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 Houston. See also: November | December | January.