S
M
T
W
T
F
S
29
52°
39°
30
64°
39°
1
61°
41°
2
62°
39°
3
63°
34°
4
52°
30°
5
59°
33°
6
59°
37°
7
53°
33°
8
48°
32°
9
49°
30°
10
48°
25°
11
46°
24°
12
47°
24°
13
49°
23°
14
48°
22°
15
48°
26°
16
47°
32°
17
50°
33°
18
55°
35°
19
57°
24°
20
54°
20°
21
48°
20°
22
44°
23°
23
47°
27°
24
47°
22°
25
46°
20°
26
44°
21°
27
46°
21°
28
45°
22°
29
46°
23°
30
48°
30°
31
56°
23°
1
56°
19°
2
45°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Waco
Waco's December 2026 forecast shows daily high temperatures ranging from 44° to 64°, with overnight lows between 17° and 41°. The average high for December is 51° with an average low of 28°. 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 Waco. See also: January | February | March.
