S
M
T
W
T
F
S
29
63°
53°
30
73°
50°
1
73°
51°
2
70°
56°
3
71°
54°
4
73°
50°
5
69°
52°
6
69°
56°
7
72°
55°
8
74°
54°
9
71°
47°
10
73°
41°
11
62°
40°
12
60°
44°
13
63°
40°
14
64°
38°
15
59°
44°
16
57°
41°
17
63°
42°
18
60°
41°
19
58°
46°
20
60°
52°
21
68°
53°
22
72°
50°
23
72°
38°
24
69°
41°
25
58°
43°
26
67°
49°
27
54°
37°
28
67°
50°
29
71°
39°
30
Hist. Avg.
62°
42°
31
Hist. Avg.
62°
42°
1
Hist. Avg.
63°
43°
2
Hist. Avg.
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Houston
Houston's December 2026 forecast shows daily high temperatures ranging from 54° to 74°, with overnight lows between 37° and 56°. The average high for December is 66° with an average low of 47°. 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 Houston. See also: January | February | March.