S
M
T
W
T
F
S
29
60°
34°
30
53°
26°
1
44°
24°
2
46°
32°
3
58°
32°
4
50°
31°
5
45°
29°
6
45°
25°
7
43°
21°
8
42°
25°
9
51°
30°
10
53°
31°
11
52°
30°
12
56°
29°
13
54°
30°
14
48°
26°
15
49°
25°
16
51°
19°
17
44°
16°
18
42°
15°
19
43°
16°
20
40°
19°
21
43°
22°
22
44°
19°
23
44°
20°
24
48°
18°
25
43°
21°
26
52°
25°
27
54°
24°
28
49°
18°
29
44°
20°
30
44°
15°
31
43°
14°
1
41°
20°
2
44°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Guymon
Guymon's December 2026 forecast shows daily high temperatures ranging from 40° to 60°, with overnight lows between 14° and 34°. The average high for December is 47° with an average low of 24°. 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 Guymon. See also: January | February | March.
