S
M
T
W
T
F
S
26
58°
41°
27
57°
43°
28
54°
36°
29
61°
32°
30
56°
34°
1
56°
31°
2
69°
25°
3
73°
45°
4
70°
42°
5
58°
35°
6
59°
38°
7
73°
44°
8
75°
47°
9
73°
46°
10
67°
44°
11
71°
44°
12
76°
53°
13
78°
52°
14
75°
52°
15
79°
51°
16
71°
52°
17
73°
51°
18
72°
50°
19
75°
49°
20
73°
52°
21
69°
48°
22
67°
46°
23
68°
48°
24
68°
49°
25
69°
48°
26
69°
48°
27
70°
49°
28
70°
54°
29
69°
59°
30
72°
57°
31
71°
51°
1
72°
54°
2
74°
60°
3
79°
61°
4
81°
62°
5
82°
63°
6
77°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wisner
Wisner's May 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 35° and 63°. The average high for May is 72° with an average low of 51°. 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 Wisner. See also: June | July | August.