S
M
T
W
T
F
S
26
79°
57°
27
72°
56°
28
72°
53°
29
75°
58°
30
67°
49°
1
66°
46°
2
63°
44°
3
66°
35°
4
78°
45°
5
76°
56°
6
74°
62°
7
72°
46°
8
68°
45°
9
72°
49°
10
74°
53°
11
71°
44°
12
65°
39°
13
72°
52°
14
72°
49°
15
74°
50°
16
73°
51°
17
77°
52°
18
74°
55°
19
75°
55°
20
76°
56°
21
72°
51°
22
73°
48°
23
70°
48°
24
70°
49°
25
72°
51°
26
73°
50°
27
71°
49°
28
72°
50°
29
73°
51°
30
73°
55°
31
74°
57°
1
76°
59°
2
74°
58°
3
75°
58°
4
75°
56°
5
78°
59°
6
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sunnyside
Sunnyside's May 2026 forecast shows daily high temperatures ranging from 65° to 80°, with overnight lows between 39° and 62°. The average high for May is 73° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Sunnyside. See also: June | July | August.
