S
M
T
W
T
F
S
26
54°
27°
27
48°
33°
28
42°
29°
29
47°
31°
30
43°
26°
1
58°
24°
2
68°
37°
3
73°
37°
4
50°
31°
5
40°
28°
6
48°
29°
7
57°
20°
8
63°
37°
9
54°
35°
10
53°
30°
11
69°
33°
12
69°
43°
13
79°
38°
14
79°
57°
15
71°
41°
16
52°
34°
17
50°
30°
18
45°
38°
19
47°
32°
20
65°
30°
21
71°
48°
22
73°
47°
23
56°
41°
24
79°
59°
25
84°
53°
26
87°
54°
27
85°
59°
28
86°
59°
29
83°
58°
30
82°
57°
31
76°
54°
1
77°
55°
2
78°
56°
3
77°
55°
4
77°
54°
5
75°
55°
6
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Winkler
Winkler's May 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 48° and 59°. The average high for May is 80° with an average low of 55°. 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 Winkler. See also: June | July | August.