S
M
T
W
T
F
S
26
84°
56°
27
83°
56°
28
76°
62°
29
85°
65°
30
75°
63°
1
67°
54°
2
70°
44°
3
74°
49°
4
80°
53°
5
82°
61°
6
79°
63°
7
74°
49°
8
71°
52°
9
73°
59°
10
78°
58°
11
77°
60°
12
80°
61°
13
81°
59°
14
82°
57°
15
83°
61°
16
84°
62°
17
84°
62°
18
83°
61°
19
83°
62°
20
84°
63°
21
85°
63°
22
85°
62°
23
82°
63°
24
80°
63°
25
84°
64°
26
83°
65°
27
81°
63°
28
80°
64°
29
81°
64°
30
84°
63°
31
85°
64°
1
85°
65°
2
86°
66°
3
86°
66°
4
87°
67°
5
83°
65°
6
81°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Postoak
Postoak's May 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 44° and 67°. The average high for May is 81° with an average low of 61°. 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 Postoak. See also: June | July | August.
