S
M
T
W
T
F
S
26
88°
67°
27
84°
66°
28
89°
63°
29
89°
64°
30
89°
69°
1
91°
72°
2
87°
64°
3
80°
60°
4
84°
63°
5
86°
68°
6
94°
68°
7
95°
69°
8
89°
72°
9
88°
70°
10
90°
72°
11
91°
71°
12
88°
70°
13
89°
70°
14
89°
69°
15
88°
69°
16
88°
70°
17
86°
78°
18
86°
70°
19
90°
71°
20
90°
70°
21
86°
71°
22
85°
69°
23
85°
66°
24
86°
68°
25
86°
72°
26
88°
72°
27
86°
71°
28
86°
72°
29
87°
71°
30
86°
72°
31
87°
73°
1
86°
73°
2
87°
72°
3
87°
74°
4
88°
74°
5
87°
73°
6
87°
74°
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 84° to 95°, with overnight lows between 63° and 78°. The average high for May is 88° with an average low of 71°. 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.
