S
M
T
W
T
F
S
29
82°
52°
30
80°
58°
31
85°
63°
1
84°
65°
2
81°
64°
3
82°
68°
4
72°
49°
5
70°
44°
6
73°
44°
7
73°
45°
8
80°
50°
9
80°
54°
10
83°
59°
11
80°
58°
12
73°
66°
13
83°
62°
14
78°
70°
15
80°
64°
16
84°
66°
17
83°
52°
18
63°
45°
19
70°
48°
20
71°
55°
21
71°
60°
22
75°
63°
23
82°
65°
24
78°
61°
25
72°
52°
26
69°
50°
27
70°
53°
28
74°
57°
29
76°
54°
30
75°
58°
1
80°
57°
2
78°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Post Oak
Post Oak's April 2026 forecast shows daily high temperatures ranging from 63° to 84°, with overnight lows between 45° and 66°. The average high for April is 75° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Post Oak. See also: May | June | July.