S
M
T
W
T
F
S
26
42°
36°
27
46°
36°
28
57°
41°
29
46°
36°
30
43°
35°
1
44°
29°
2
63°
29°
3
66°
51°
4
58°
33°
5
45°
32°
6
48°
30°
7
48°
31°
8
53°
34°
9
53°
35°
10
57°
39°
11
56°
40°
12
58°
44°
13
56°
42°
14
56°
42°
15
55°
43°
16
58°
41°
17
56°
43°
18
60°
47°
19
58°
47°
20
59°
44°
21
53°
38°
22
53°
39°
23
55°
40°
24
52°
39°
25
54°
40°
26
54°
40°
27
53°
40°
28
54°
39°
29
56°
48°
30
56°
48°
31
59°
49°
1
65°
50°
2
66°
51°
3
67°
51°
4
66°
52°
5
68°
52°
6
67°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Superior
Superior's May 2026 forecast shows daily high temperatures ranging from 45° to 68°, with overnight lows between 30° and 52°. The average high for May is 57° with an average low of 42°. 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 Superior. See also: June | July | August.
