S
M
T
W
T
F
S
26
50°
30°
27
43°
36°
28
43°
30°
29
36°
30°
30
43°
30°
1
46°
30°
2
55°
30°
3
63°
37°
4
45°
30°
5
34°
27°
6
36°
28°
7
41°
27°
8
52°
36°
9
45°
36°
10
43°
34°
11
54°
37°
12
52°
39°
13
55°
41°
14
61°
46°
15
61°
34°
16
47°
35°
17
48°
41°
18
45°
33°
19
40°
32°
20
57°
38°
21
61°
42°
22
69°
47°
23
69°
49°
24
71°
50°
25
73°
49°
26
73°
52°
27
77°
52°
28
68°
45°
29
62°
46°
30
63°
43°
31
62°
41°
1
63°
41°
2
67°
49°
3
64°
52°
4
72°
52°
5
72°
53°
6
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Winnitoba
Winnitoba's May 2026 forecast shows daily high temperatures ranging from 40° to 77°, with overnight lows between 32° and 53°. The average high for May is 63° 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 Winnitoba. See also: June | July | August.
