S
M
T
W
T
F
S
29
46°
40°
30
51°
35°
1
52°
29°
2
43°
36°
3
44°
38°
4
53°
34°
5
47°
37°
6
48°
41°
7
51°
39°
8
54°
37°
9
51°
36°
10
46°
38°
11
49°
37°
12
50°
37°
13
50°
30°
14
43°
34°
15
43°
38°
16
51°
35°
17
52°
31°
18
45°
32°
19
47°
31°
20
44°
34°
21
43°
37°
22
50°
36°
23
50°
36°
24
48°
35°
25
47°
31°
26
45°
29°
27
42°
29°
28
40°
30°
29
41°
28°
30
41°
29°
31
40°
34°
1
46°
22°
2
50°
18°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Plainview
Plainview's December 2026 forecast shows daily high temperatures ranging from 40° to 54°, with overnight lows between 18° and 41°. The average high for December is 47° with an average low of 34°. 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 Plainview. See also: January | February | March.
