S
M
T
W
T
F
S
29
66°
48°
30
68°
38°
1
55°
33°
2
52°
33°
3
53°
38°
4
57°
42°
5
54°
38°
6
52°
35°
7
52°
32°
8
50°
31°
9
49°
30°
10
50°
31°
11
54°
32°
12
55°
37°
13
55°
37°
14
54°
33°
15
52°
32°
16
49°
35°
17
52°
32°
18
49°
29°
19
48°
28°
20
49°
30°
21
51°
30°
22
55°
31°
23
50°
28°
24
46°
27°
25
46°
28°
26
47°
32°
27
48°
31°
28
49°
30°
29
49°
29°
30
48°
30°
31
49°
27°
1
47°
28°
2
48°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Grapevine
Grapevine's December 2026 forecast shows daily high temperatures ranging from 46° to 68°, with overnight lows between 27° and 48°. The average high for December is 52° with an average low of 33°. 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 Grapevine. See also: January | February | March.
