S
M
T
W
T
F
S
29
64°
29°
30
76°
51°
31
81°
58°
1
83°
61°
2
83°
62°
3
83°
62°
4
83°
61°
5
85°
64°
6
65°
48°
7
67°
47°
8
59°
39°
9
68°
37°
10
76°
40°
11
82°
51°
12
76°
51°
13
84°
59°
14
87°
60°
15
91°
62°
16
89°
64°
17
87°
63°
18
89°
57°
19
77°
45°
20
72°
40°
21
65°
38°
22
83°
50°
23
88°
60°
24
88°
61°
25
89°
58°
26
65°
49°
27
75°
50°
28
73°
62°
29
77°
61°
30
74°
63°
1
76°
54°
2
71°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Washington
Washington's April 2026 forecast shows daily high temperatures ranging from 65° to 89°, with overnight lows between 48° and 63°. The average high for April is 78° with an average low of 57°. 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 Washington. See also: May | June | July.