S
M
T
W
T
F
S
29
64°
41°
30
53°
42°
31
59°
47°
1
54°
40°
2
54°
39°
3
67°
36°
4
75°
39°
5
81°
45°
6
81°
45°
7
68°
43°
8
67°
45°
9
72°
47°
10
66°
45°
11
53°
38°
12
58°
37°
13
60°
36°
14
61°
40°
15
62°
39°
16
63°
41°
17
64°
40°
18
63°
40°
19
63°
38°
20
62°
37°
21
59°
34°
22
57°
34°
23
57°
34°
24
60°
41°
25
58°
34°
26
62°
35°
27
64°
37°
28
63°
40°
29
63°
36°
30
66°
42°
1
67°
41°
2
63°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Reston
Reston's April 2026 forecast shows daily high temperatures ranging from 53° to 72°, with overnight lows between 34° and 47°. The average high for April is 62° with an average low of 39°. 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 Reston. See also: May | June | July.