S
M
T
W
T
F
S
29
37°
11°
30
34°
26°
31
42°
27°
1
43°
18°
2
45°
15°
3
41°
31°
4
44°
32°
5
41°
31°
6
41°
33°
7
42°
35°
8
41°
35°
9
39°
35°
10
51°
30°
11
53°
23°
12
42°
22°
13
39°
29°
14
48°
25°
15
46°
28°
16
42°
35°
17
43°
37°
18
43°
43°
19
49°
37°
20
39°
39°
21
42°
36°
22
47°
34°
23
49°
34°
24
46°
30°
25
50°
36°
26
49°
41°
27
49°
42°
28
48°
39°
29
48°
36°
30
47°
38°
1
50°
40°
2
56°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Sunnyside
Sunnyside's April 2026 forecast shows daily high temperatures ranging from 47° to 56°, with overnight lows between 36° and 47°. The average high for April is 50° with an average low of 40°. 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 Sunnyside. See also: May | June | July.
