S
M
T
W
T
F
S
29
47°
27°
30
45°
20°
1
41°
26°
2
43°
28°
3
44°
25°
4
43°
24°
5
45°
29°
6
45°
25°
7
44°
20°
8
41°
24°
9
41°
22°
10
38°
16°
11
34°
20°
12
34°
13°
13
36°
8°
14
24°
16°
15
26°
19°
16
37°
11°
17
36°
6°
18
32°
13°
19
22°
14°
20
35°
12°
21
32°
11°
22
22°
16°
23
25°
12°
24
30°
14°
25
26°
15°
26
33°
18°
27
19°
12°
28
31°
0°
29
Hist. Avg.
26°
9°
30
Hist. Avg.
26°
9°
31
Hist. Avg.
26°
9°
1
Hist. Avg.
26°
8°
2
Hist. Avg.
25°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Royal
Royal's December 2026 forecast shows daily high temperatures ranging from 19° to 47°, with overnight lows between -0° and 29°. The average high for December is 35° with an average low of 17°. 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 Royal. See also: January | February | March.
