S
M
T
W
T
F
S
29
51°
27°
30
46°
24°
1
44°
23°
2
44°
23°
3
45°
24°
4
46°
24°
5
47°
25°
6
45°
31°
7
45°
35°
8
49°
30°
9
46°
31°
10
47°
28°
11
50°
34°
12
59°
36°
13
59°
34°
14
47°
29°
15
46°
30°
16
52°
31°
17
45°
31°
18
48°
27°
19
52°
30°
20
54°
30°
21
58°
36°
22
57°
34°
23
56°
32°
24
52°
32°
25
48°
23°
26
50°
29°
27
55°
27°
28
57°
20°
29
47°
23°
30
42°
28°
31
45°
30°
1
48°
30°
2
49°
32°
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 42° to 59°, with overnight lows between 20° and 36°. The average high for December is 49° with an average low of 29°. 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.
