S
M
T
W
T
F
S
29
55°
36°
30
55°
37°
1
58°
40°
2
63°
35°
3
59°
35°
4
56°
47°
5
60°
52°
6
67°
48°
7
68°
40°
8
66°
37°
9
59°
47°
10
60°
48°
11
57°
46°
12
61°
43°
13
55°
35°
14
53°
34°
15
52°
46°
16
56°
47°
17
60°
48°
18
62°
50°
19
66°
50°
20
67°
46°
21
69°
42°
22
61°
38°
23
51°
37°
24
52°
47°
25
61°
46°
26
60°
39°
27
59°
33°
28
56°
35°
29
50°
31°
30
49°
29°
31
48°
31°
1
48°
33°
2
57°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Tyler
Tyler's December 2026 forecast shows daily high temperatures ranging from 48° to 69°, with overnight lows between 29° and 52°. The average high for December is 58° with an average low of 41°. 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 Tyler. See also: January | February | March.