S
M
T
W
T
F
S
29
66°
42°
30
60°
41°
1
61°
41°
2
61°
42°
3
59°
40°
4
62°
41°
5
62°
41°
6
64°
40°
7
65°
42°
8
63°
41°
9
57°
37°
10
58°
41°
11
58°
30°
12
56°
33°
13
57°
36°
14
62°
37°
15
64°
40°
16
63°
33°
17
57°
39°
18
58°
39°
19
57°
42°
20
59°
43°
21
62°
31°
22
58°
30°
23
53°
31°
24
54°
33°
25
55°
37°
26
57°
36°
27
54°
38°
28
54°
32°
29
53°
32°
30
53°
33°
31
52°
31°
1
52°
33°
2
54°
34°
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 52° to 66°, with overnight lows between 30° and 43°. The average high for December is 58° with an average low of 37°. 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.
