S
M
T
W
T
F
S
29
59°
32°
30
58°
23°
1
45°
20°
2
46°
26°
3
55°
32°
4
56°
30°
5
46°
24°
6
46°
23°
7
44°
18°
8
42°
19°
9
46°
27°
10
50°
30°
11
51°
30°
12
56°
29°
13
52°
29°
14
48°
22°
15
47°
24°
16
49°
20°
17
45°
18°
18
43°
16°
19
44°
17°
20
41°
18°
21
45°
24°
22
45°
19°
23
44°
21°
24
49°
18°
25
44°
20°
26
51°
23°
27
55°
24°
28
51°
17°
29
44°
22°
30
44°
16°
31
45°
16°
1
43°
20°
2
45°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dimmitt
Dimmitt's December 2026 forecast shows daily high temperatures ranging from 41° to 59°, with overnight lows between 16° and 32°. The average high for December is 48° 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 Dimmitt. See also: January | February | March.