S
M
T
W
T
F
S
28
83°
73°
29
84°
78°
30
86°
76°
31
87°
77°
1
87°
75°
2
88°
74°
3
85°
73°
4
87°
78°
5
86°
75°
6
84°
73°
7
86°
78°
8
86°
78°
9
86°
74°
10
86°
76°
11
82°
76°
12
87°
77°
13
90°
79°
14
90°
79°
15
87°
78°
16
89°
74°
17
90°
72°
18
89°
77°
19
89°
80°
20
89°
77°
21
86°
78°
22
87°
73°
23
86°
72°
24
88°
79°
25
87°
80°
26
89°
77°
27
90°
78°
28
93°
76°
29
90°
75°
30
89°
72°
31
86°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Mackay
Mackay's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Mackay. See also: February | March | April.