S
M
T
W
T
F
S
26
63°
38°
27
67°
37°
28
64°
57°
29
62°
44°
30
N/A
1
49°
33°
2
50°
32°
3
57°
45°
4
69°
51°
5
56°
40°
6
53°
38°
7
51°
32°
8
54°
40°
9
58°
39°
10
63°
43°
11
62°
44°
12
62°
43°
13
63°
42°
14
60°
46°
15
65°
44°
16
63°
41°
17
65°
50°
18
72°
52°
19
71°
52°
20
72°
53°
21
74°
54°
22
73°
54°
23
75°
49°
24
67°
45°
25
66°
49°
26
68°
54°
27
76°
55°
28
71°
54°
29
69°
50°
30
70°
51°
31
72°
47°
1
69°
50°
2
69°
54°
3
70°
48°
4
70°
48°
5
69°
49°
6
70°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ann Arbor
Ann Arbor's May 2026 forecast shows daily high temperatures ranging from 49° to 76°, with overnight lows between 32° and 55°. The average high for May is 65° with an average low of 46°. 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 Ann Arbor. See also: June | July | August.
