S
M
T
W
T
F
S
29
43°
29°
30
45°
30°
1
44°
34°
2
43°
34°
3
54°
29°
4
55°
23°
5
39°
27°
6
41°
28°
7
50°
31°
8
53°
34°
9
39°
23°
10
48°
37°
11
51°
38°
12
Hist. Avg.
45°
29°
13
Hist. Avg.
44°
28°
14
Hist. Avg.
44°
28°
15
Hist. Avg.
44°
28°
16
Hist. Avg.
44°
28°
17
Hist. Avg.
43°
28°
18
Hist. Avg.
43°
28°
19
Hist. Avg.
43°
27°
20
Hist. Avg.
43°
27°
21
Hist. Avg.
43°
27°
22
Hist. Avg.
42°
27°
23
Hist. Avg.
42°
27°
24
Hist. Avg.
42°
26°
25
Hist. Avg.
42°
26°
26
Hist. Avg.
42°
26°
27
Hist. Avg.
42°
26°
28
Hist. Avg.
42°
26°
29
Hist. Avg.
41°
26°
30
Hist. Avg.
41°
26°
31
Hist. Avg.
41°
25°
1
Hist. Avg.
41°
25°
2
Hist. Avg.
41°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in MacArthur
MacArthur's December 2026 forecast shows daily high temperatures ranging from 39° to 55°, with overnight lows between 23° and 38°. The average high for December is 47° with an average low of 31°. 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 MacArthur. See also: January | February | March.
