S
M
T
W
T
F
S
29
67°
50°
30
70°
50°
1
71°
51°
2
69°
50°
3
66°
46°
4
60°
40°
5
61°
41°
6
60°
43°
7
58°
38°
8
55°
34°
9
55°
37°
10
56°
36°
11
53°
33°
12
53°
40°
13
54°
44°
14
60°
44°
15
54°
40°
16
53°
37°
17
57°
36°
18
64°
42°
19
65°
41°
20
60°
42°
21
54°
39°
22
58°
41°
23
63°
32°
24
58°
30°
25
53°
32°
26
57°
44°
27
63°
47°
28
66°
45°
29
67°
38°
30
67°
37°
31
58°
41°
1
60°
30°
2
60°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Trinity
Trinity's December 2026 forecast shows daily high temperatures ranging from 53° to 71°, with overnight lows between 28° and 51°. The average high for December is 60° with an average low of 40°. 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 Trinity. See also: January | February | March.
