S
M
T
W
T
F
S
29
43°
29°
30
50°
27°
1
50°
25°
2
45°
30°
3
50°
22°
4
49°
22°
5
36°
21°
6
35°
20°
7
34°
21°
8
36°
26°
9
38°
31°
10
47°
27°
11
47°
27°
12
37°
24°
13
35°
25°
14
34°
22°
15
36°
18°
16
33°
16°
17
31°
18°
18
30°
28°
19
37°
28°
20
38°
22°
21
43°
23°
22
34°
31°
23
44°
32°
24
44°
27°
25
43°
26°
26
42°
26°
27
38°
27°
28
41°
28°
29
41°
29°
30
42°
30°
31
44°
27°
1
44°
25°
2
43°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Thiells
Thiells's December 2026 forecast shows daily high temperatures ranging from 30° to 50°, with overnight lows between 16° and 32°. The average high for December is 40° with an average low of 25°. 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 Thiells. See also: January | February | March.
