S
M
T
W
T
F
S
29
53°
36°
30
52°
31°
1
53°
33°
2
53°
31°
3
54°
30°
4
50°
30°
5
52°
35°
6
57°
46°
7
60°
38°
8
64°
32°
9
60°
31°
10
52°
32°
11
54°
36°
12
55°
38°
13
53°
34°
14
49°
29°
15
48°
29°
16
48°
30°
17
50°
31°
18
51°
40°
19
52°
41°
20
53°
45°
21
60°
44°
22
62°
44°
23
61°
40°
24
63°
37°
25
60°
39°
26
60°
39°
27
59°
29°
28
58°
31°
29
48°
27°
30
48°
23°
31
50°
22°
1
41°
25°
2
45°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Grayson
Grayson's December 2026 forecast shows daily high temperatures ranging from 41° to 64°, with overnight lows between 22° and 46°. The average high for December is 54° with an average low of 34°. 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 Grayson. See also: January | February | March.
