S
M
T
W
T
F
S
26
53°
26°
27
57°
30°
28
62°
33°
29
63°
37°
30
63°
37°
1
64°
38°
2
64°
37°
3
65°
38°
4
65°
39°
5
64°
32°
6
55°
28°
7
54°
28°
8
54°
29°
9
56°
32°
10
61°
37°
11
65°
36°
12
67°
41°
13
69°
42°
14
70°
42°
15
67°
40°
16
68°
42°
17
70°
42°
18
66°
43°
19
67°
36°
20
70°
43°
21
68°
39°
22
61°
33°
23
58°
39°
24
66°
36°
25
62°
44°
26
70°
37°
27
67°
35°
28
60°
34°
29
60°
42°
30
67°
41°
31
71°
42°
1
70°
47°
2
74°
48°
3
75°
47°
4
74°
43°
5
74°
36°
6
64°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mackay
Mackay's May 2026 forecast shows daily high temperatures ranging from 53° to 75°, with overnight lows between 26° and 48°. The average high for May is 65° with an average low of 38°. 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 Mackay. See also: June | July | August.
