S
M
T
W
T
F
S
26
46°
34°
27
49°
34°
28
48°
35°
29
47°
34°
30
49°
36°
1
53°
35°
2
47°
35°
3
50°
36°
4
48°
36°
5
48°
35°
6
49°
36°
7
49°
37°
8
48°
38°
9
50°
43°
10
51°
42°
11
52°
43°
12
55°
43°
13
52°
40°
14
51°
37°
15
52°
42°
16
54°
45°
17
58°
47°
18
62°
37°
19
53°
36°
20
52°
37°
21
54°
42°
22
55°
42°
23
56°
48°
24
63°
48°
25
65°
45°
26
57°
42°
27
56°
42°
28
57°
46°
29
58°
47°
30
59°
48°
31
58°
45°
1
61°
41°
2
62°
43°
3
64°
46°
4
65°
44°
5
64°
40°
6
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Detroit Harbor
Detroit Harbor's May 2026 forecast shows daily high temperatures ranging from 46° to 65°, with overnight lows between 34° and 48°. The average high for May is 55° with an average low of 41°. 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 Detroit Harbor. See also: June | July | August.
