S
M
T
W
T
F
S
29
41°
31°
30
41°
32°
1
42°
34°
2
42°
39°
3
45°
40°
4
47°
36°
5
48°
33°
6
43°
32°
7
42°
33°
8
41°
36°
9
44°
35°
10
40°
35°
11
41°
34°
12
Hist. Avg.
44°
32°
13
Hist. Avg.
44°
32°
14
Hist. Avg.
43°
32°
15
Hist. Avg.
43°
32°
16
Hist. Avg.
43°
32°
17
Hist. Avg.
43°
32°
18
Hist. Avg.
43°
32°
19
Hist. Avg.
43°
32°
20
Hist. Avg.
43°
32°
21
Hist. Avg.
43°
32°
22
Hist. Avg.
43°
32°
23
Hist. Avg.
43°
32°
24
Hist. Avg.
43°
32°
25
Hist. Avg.
43°
32°
26
Hist. Avg.
43°
32°
27
Hist. Avg.
43°
32°
28
Hist. Avg.
43°
32°
29
Hist. Avg.
43°
32°
30
Hist. Avg.
43°
32°
31
Hist. Avg.
44°
32°
1
Hist. Avg.
44°
32°
2
Hist. Avg.
44°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Union-Grapeview
Union-Grapeview's December 2026 forecast shows daily high temperatures ranging from 40° to 48°, with overnight lows between 31° and 40°. The average high for December is 43° with an average low of 35°. 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 Union-Grapeview. See also: January | February | March.
