S
M
T
W
T
F
S
29
28°
7°
30
25°
6°
1
26°
13°
2
28°
17°
3
29°
16°
4
27°
10°
5
25°
12°
6
27°
7°
7
24°
6°
8
29°
6°
9
32°
7°
10
33°
12°
11
35°
8°
12
34°
9°
13
35°
15°
14
29°
17°
15
25°
12°
16
31°
5°
17
26°
16°
18
28°
17°
19
31°
19°
20
31°
10°
21
32°
5°
22
25°
14°
23
29°
4°
24
29°
15°
25
26°
17°
26
31°
5°
27
32°
0°
28
21°
12°
29
21°
3°
30
26°
9°
31
22°
13°
1
30°
19°
2
31°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dillon
Dillon's December 2026 forecast shows daily high temperatures ranging from 21° to 35°, with overnight lows between 0° and 19°. The average high for December is 28° with an average low of 11°. 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 Dillon. See also: January | February | March.
