S
M
T
W
T
F
S
29
52°
33°
30
51°
33°
1
47°
32°
2
52°
32°
3
46°
31°
4
46°
32°
5
54°
32°
6
58°
31°
7
52°
31°
8
56°
30°
9
52°
31°
10
56°
29°
11
47°
14°
12
42°
12°
13
39°
18°
14
42°
17°
15
43°
24°
16
44°
26°
17
44°
24°
18
46°
24°
19
51°
28°
20
53°
24°
21
56°
30°
22
56°
18°
23
55°
14°
24
44°
14°
25
38°
18°
26
44°
22°
27
46°
30°
28
55°
28°
29
56°
32°
30
57°
31°
31
59°
26°
1
59°
19°
2
55°
17°
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 38° to 59°, with overnight lows between 12° and 33°. The average high for December is 50° 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 Guymon. See also: January | February | March.
