S
M
T
W
T
F
S
26
60°
35°
27
71°
30°
28
63°
51°
29
56°
47°
30
55°
37°
1
51°
30°
2
51°
35°
3
57°
34°
4
74°
42°
5
75°
49°
6
50°
44°
7
57°
32°
8
58°
32°
9
61°
43°
10
65°
34°
11
57°
29°
12
64°
25°
13
67°
45°
14
49°
44°
15
68°
40°
16
80°
33°
17
85°
49°
18
93°
63°
19
92°
69°
20
77°
42°
21
64°
40°
22
66°
48°
23
64°
55°
24
69°
52°
25
73°
54°
26
76°
53°
27
74°
53°
28
75°
55°
29
76°
53°
30
77°
54°
31
78°
51°
1
72°
52°
2
71°
55°
3
70°
55°
4
71°
56°
5
72°
54°
6
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mac
Mac's May 2026 forecast shows daily high temperatures ranging from 64° to 93°, with overnight lows between 40° and 69°. The average high for May is 74° with an average low of 53°. 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 Mac. See also: June | July | August.
