S
M
T
W
T
F
S
26
63°
34°
27
64°
50°
28
61°
50°
29
52°
37°
30
52°
32°
1
45°
32°
2
52°
28°
3
61°
41°
4
77°
48°
5
55°
43°
6
55°
36°
7
57°
32°
8
64°
37°
9
72°
41°
10
59°
36°
11
59°
36°
12
70°
32°
13
54°
36°
14
59°
34°
15
70°
41°
16
79°
61°
17
82°
66°
18
77°
66°
19
74°
47°
20
55°
45°
21
59°
46°
22
64°
50°
23
70°
55°
24
73°
57°
25
71°
56°
26
67°
54°
27
69°
56°
28
72°
55°
29
73°
57°
30
72°
53°
31
75°
58°
1
72°
59°
2
74°
57°
3
67°
54°
4
67°
54°
5
69°
59°
6
74°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Union Pier
Union Pier's May 2026 forecast shows daily high temperatures ranging from 55° to 82°, with overnight lows between 45° and 66°. The average high for May is 70° 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 Union Pier. See also: June | July | August.
