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