S
M
T
W
T
F
S
29
55°
38°
30
56°
31°
1
51°
25°
2
42°
25°
3
49°
36°
4
53°
36°
5
48°
35°
6
42°
30°
7
41°
23°
8
39°
23°
9
41°
28°
10
45°
30°
11
48°
29°
12
53°
29°
13
48°
32°
14
45°
27°
15
46°
27°
16
47°
26°
17
40°
21°
18
39°
19°
19
38°
16°
20
35°
14°
21
33°
27°
22
39°
20°
23
40°
23°
24
38°
16°
25
37°
23°
26
37°
27°
27
40°
25°
28
40°
20°
29
38°
22°
30
37°
21°
31
37°
16°
1
36°
12°
2
34°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Arcadia
Arcadia's December 2026 forecast shows daily high temperatures ranging from 33° to 56°, with overnight lows between 12° and 38°. The average high for December is 42° with an average low of 25°. 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 Arcadia. See also: January | February | March.
