S
M
T
W
T
F
S
29
59°
41°
30
59°
41°
1
62°
37°
2
50°
31°
3
48°
28°
4
53°
34°
5
56°
39°
6
49°
34°
7
47°
28°
8
45°
25°
9
45°
27°
10
46°
28°
11
47°
29°
12
50°
32°
13
50°
28°
14
48°
26°
15
48°
34°
16
49°
35°
17
50°
30°
18
54°
28°
19
48°
24°
20
47°
23°
21
45°
24°
22
46°
27°
23
50°
28°
24
45°
25°
25
45°
24°
26
46°
24°
27
46°
23°
28
45°
24°
29
46°
26°
30
47°
25°
31
46°
23°
1
44°
19°
2
43°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Myrtle
Myrtle's December 2026 forecast shows daily high temperatures ranging from 43° to 62°, with overnight lows between 19° and 41°. The average high for December is 49° with an average low of 28°. 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 Myrtle. See also: January | February | March.
