S
M
T
W
T
F
S
29
69°
47°
30
67°
48°
1
69°
42°
2
55°
35°
3
54°
33°
4
56°
38°
5
64°
41°
6
55°
34°
7
53°
35°
8
52°
33°
9
51°
32°
10
50°
31°
11
52°
32°
12
54°
34°
13
59°
36°
14
55°
37°
15
55°
40°
16
57°
37°
17
56°
36°
18
58°
33°
19
53°
30°
20
51°
31°
21
52°
32°
22
54°
33°
23
51°
33°
24
50°
31°
25
51°
31°
26
50°
32°
27
52°
30°
28
52°
32°
29
53°
34°
30
50°
33°
31
52°
31°
1
51°
29°
2
49°
31°
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 49° to 69°, with overnight lows between 29° and 48°. The average high for December is 55° 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.
