S
M
T
W
T
F
S
29
62°
28°
30
72°
52°
31
84°
62°
1
87°
63°
2
66°
47°
3
83°
47°
4
88°
61°
5
75°
51°
6
62°
46°
7
56°
40°
8
53°
31°
9
62°
31°
10
78°
38°
11
70°
47°
12
73°
43°
13
82°
54°
14
89°
55°
15
92°
59°
16
92°
61°
17
80°
59°
18
79°
54°
19
60°
38°
20
56°
34°
21
61°
48°
22
75°
51°
23
80°
53°
24
77°
53°
25
62°
49°
26
63°
47°
27
67°
52°
28
68°
53°
29
71°
52°
30
68°
52°
1
65°
51°
2
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in National Arboretum
National Arboretum's April 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 47° and 53°. The average high for April is 69° with an average low of 51°. 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 National Arboretum. See also: May | June | July.
