S
M
T
W
T
F
S
26
63°
38°
27
67°
37°
28
64°
57°
29
62°
44°
30
54°
39°
1
51°
40°
2
48°
31°
3
64°
26°
4
76°
45°
5
75°
50°
6
55°
43°
7
56°
33°
8
66°
36°
9
71°
40°
10
69°
35°
11
59°
31°
12
60°
29°
13
59°
45°
14
66°
43°
15
71°
35°
16
81°
48°
17
86°
55°
18
88°
60°
19
86°
63°
20
81°
52°
21
66°
35°
22
67°
40°
23
61°
52°
24
69°
53°
25
79°
54°
26
82°
46°
27
82°
53°
28
75°
43°
29
80°
49°
30
69°
46°
31
73°
48°
1
76°
45°
2
76°
48°
3
77°
52°
4
80°
57°
5
77°
58°
6
78°
56°
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 69° to 80°, with overnight lows between 43° and 58°. The average high for May is 76° with an average low of 50°. 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.
