S
M
T
W
T
F
S
29
56°
45°
30
58°
43°
1
64°
40°
2
59°
43°
3
55°
32°
4
65°
29°
5
51°
31°
6
50°
30°
7
52°
36°
8
50°
31°
9
51°
29°
10
49°
27°
11
47°
27°
12
46°
28°
13
47°
29°
14
48°
29°
15
50°
30°
16
51°
32°
17
51°
37°
18
50°
40°
19
51°
35°
20
50°
33°
21
49°
33°
22
49°
31°
23
51°
37°
24
50°
30°
25
51°
27°
26
45°
28°
27
47°
27°
28
46°
28°
29
47°
29°
30
47°
30°
31
51°
23°
1
Hist. Avg.
49°
31°
2
Hist. Avg.
49°
31°
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 45° to 65°, with overnight lows between 23° and 45°. The average high for December is 51° with an average low of 32°. 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.
