S
M
T
W
T
F
S
29
42°
17°
30
40°
14°
1
38°
13°
2
38°
16°
3
42°
19°
4
38°
15°
5
37°
13°
6
37°
11°
7
35°
10°
8
35°
11°
9
39°
12°
10
43°
12°
11
45°
13°
12
45°
19°
13
44°
15°
14
38°
14°
15
38°
17°
16
37°
15°
17
36°
9°
18
34°
12°
19
33°
13°
20
35°
16°
21
37°
15°
22
36°
9°
23
34°
17°
24
36°
10°
25
36°
12°
26
37°
21°
27
42°
16°
28
37°
9°
29
34°
11°
30
35°
7°
31
33°
10°
1
34°
14°
2
40°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mack
Mack's December 2026 forecast shows daily high temperatures ranging from 33° to 45°, with overnight lows between 7° and 21°. The average high for December is 38° with an average low of 14°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Mack. See also: January | February | March.
