S
M
T
W
T
F
S
29
46°
31°
30
49°
35°
1
51°
34°
2
50°
34°
3
51°
32°
4
48°
31°
5
49°
29°
6
46°
32°
7
49°
31°
8
41°
28°
9
39°
26°
10
39°
24°
11
37°
29°
12
39°
26°
13
40°
25°
14
39°
21°
15
36°
20°
16
36°
23°
17
37°
22°
18
36°
27°
19
43°
26°
20
43°
20°
21
38°
20°
22
35°
19°
23
33°
18°
24
36°
22°
25
37°
19°
26
42°
12°
27
34°
11°
28
29°
13°
29
32°
11°
30
31°
17°
31
33°
24°
1
45°
17°
2
43°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Thomaston
Thomaston's December 2026 forecast shows daily high temperatures ranging from 29° to 51°, with overnight lows between 11° and 35°. The average high for December is 40° with an average low of 23°. 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 Thomaston. See also: January | February | March.
