S
M
T
W
T
F
S
26
60°
41°
27
70°
41°
28
58°
51°
29
53°
40°
30
45°
37°
1
40°
32°
2
42°
31°
3
55°
43°
4
65°
54°
5
64°
41°
6
46°
37°
7
47°
36°
8
47°
37°
9
50°
36°
10
51°
40°
11
53°
41°
12
55°
41°
13
55°
44°
14
57°
45°
15
55°
42°
16
57°
55°
17
69°
50°
18
68°
47°
19
65°
45°
20
70°
49°
21
67°
48°
22
64°
41°
23
59°
40°
24
61°
41°
25
61°
43°
26
62°
43°
27
62°
42°
28
63°
42°
29
62°
43°
30
63°
44°
31
67°
50°
1
64°
47°
2
66°
46°
3
67°
53°
4
68°
51°
5
67°
50°
6
75°
55°
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 46° to 75°, with overnight lows between 36° and 55°. The average high for May is 61° with an average low of 45°. 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.
