S
M
T
W
T
F
S
27
87°
56°
28
86°
52°
29
88°
52°
30
91°
54°
1
90°
64°
2
88°
70°
3
84°
71°
4
76°
69°
5
80°
66°
6
77°
61°
7
73°
55°
8
77°
55°
9
78°
59°
10
79°
64°
11
73°
66°
12
74°
57°
13
79°
54°
14
78°
55°
15
76°
52°
16
76°
56°
17
74°
55°
18
77°
53°
19
76°
54°
20
74°
46°
21
69°
45°
22
69°
44°
23
70°
44°
24
72°
47°
25
72°
52°
26
76°
52°
27
77°
51°
28
71°
48°
29
66°
46°
30
70°
44°
31
71°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Postoak
Postoak's October 2026 forecast shows daily high temperatures ranging from 66° to 88°, with overnight lows between 44° and 71°. The average high for October is 75° with an average low of 55°. 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 Postoak. See also: November | December | January.