S
M
T
W
T
F
S
29
35°
23°
30
36°
26°
1
38°
23°
2
38°
26°
3
39°
24°
4
39°
21°
5
40°
20°
6
38°
19°
7
37°
16°
8
38°
26°
9
40°
27°
10
43°
25°
11
47°
21°
12
Hist. Avg.
34°
17°
13
Hist. Avg.
34°
16°
14
Hist. Avg.
34°
16°
15
Hist. Avg.
34°
16°
16
Hist. Avg.
33°
15°
17
Hist. Avg.
33°
15°
18
Hist. Avg.
33°
15°
19
Hist. Avg.
32°
15°
20
Hist. Avg.
32°
14°
21
Hist. Avg.
32°
14°
22
Hist. Avg.
32°
14°
23
Hist. Avg.
32°
14°
24
Hist. Avg.
31°
13°
25
Hist. Avg.
31°
13°
26
Hist. Avg.
31°
13°
27
Hist. Avg.
31°
13°
28
Hist. Avg.
31°
13°
29
Hist. Avg.
31°
12°
30
Hist. Avg.
30°
12°
31
Hist. Avg.
30°
12°
1
Hist. Avg.
30°
12°
2
Hist. Avg.
30°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Thomson
Thomson's December 2026 forecast shows daily high temperatures ranging from 35° to 47°, with overnight lows between 16° and 27°. The average high for December is 39° 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 Thomson. See also: January | February | March.
