S
M
T
W
T
F
S
26
69°
30°
27
70°
32°
28
67°
37°
29
72°
41°
30
76°
39°
1
79°
37°
2
86°
46°
3
88°
49°
4
91°
56°
5
88°
55°
6
90°
50°
7
83°
51°
8
77°
49°
9
78°
50°
10
80°
52°
11
84°
53°
12
80°
49°
13
76°
49°
14
76°
50°
15
75°
46°
16
70°
51°
17
74°
50°
18
67°
45°
19
67°
43°
20
69°
48°
21
78°
52°
22
79°
53°
23
77°
51°
24
79°
54°
25
81°
53°
26
79°
53°
27
80°
54°
28
80°
54°
29
79°
53°
30
81°
54°
31
82°
55°
1
83°
56°
2
82°
55°
3
83°
55°
4
82°
54°
5
82°
55°
6
81°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Toppenish
Toppenish's May 2026 forecast shows daily high temperatures ranging from 67° to 91°, with overnight lows between 43° and 56°. The average high for May is 80° 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 Toppenish. See also: June | July | August.
