S
M
T
W
T
F
S
29
75°
43°
30
84°
64°
31
79°
59°
1
72°
54°
2
77°
55°
3
79°
54°
4
55°
43°
5
61°
39°
6
68°
39°
7
68°
43°
8
75°
54°
9
77°
54°
10
66°
54°
11
79°
52°
12
73°
64°
13
82°
63°
14
84°
68°
15
79°
61°
16
79°
59°
17
82°
52°
18
59°
41°
19
70°
41°
20
73°
43°
21
77°
55°
22
73°
57°
23
75°
63°
24
68°
54°
25
N/A
26
77°
66°
27
84°
47°
28
65°
46°
29
66°
47°
30
70°
44°
1
65°
43°
2
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Harry S Truman State Park
Harry S Truman State Park's April 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 43° and 66°. The average high for April is 71° with an average low of 49°. 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 Harry S Truman State Park. See also: May | June | July.