S
M
T
W
T
F
S
26
67°
45°
27
61°
45°
28
62°
45°
29
67°
46°
30
61°
43°
1
65°
50°
2
63°
52°
3
74°
47°
4
63°
42°
5
62°
42°
6
63°
45°
7
72°
50°
8
67°
46°
9
65°
45°
10
64°
44°
11
65°
49°
12
72°
56°
13
77°
58°
14
75°
55°
15
74°
47°
16
67°
47°
17
69°
55°
18
74°
59°
19
77°
58°
20
77°
56°
21
70°
53°
22
73°
56°
23
75°
57°
24
75°
58°
25
78°
58°
26
79°
59°
27
79°
58°
28
80°
59°
29
84°
58°
30
80°
57°
31
82°
53°
1
77°
52°
2
75°
53°
3
75°
52°
4
76°
56°
5
76°
56°
6
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Macomb
Macomb's May 2026 forecast shows daily high temperatures ranging from 61° to 84°, with overnight lows between 42° and 62°. The average high for May is 72° with an average low of 52°. 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 Macomb. See also: June | July | August.