S
M
T
W
T
F
S
29
58°
37°
30
59°
50°
1
68°
48°
2
62°
44°
3
58°
41°
4
58°
41°
5
59°
42°
6
66°
47°
7
68°
42°
8
62°
40°
9
65°
46°
10
69°
47°
11
71°
32°
12
72°
29°
13
55°
31°
14
56°
32°
15
52°
30°
16
57°
36°
17
57°
42°
18
63°
45°
19
70°
43°
20
68°
42°
21
70°
46°
22
68°
47°
23
73°
32°
24
72°
29°
25
57°
27°
26
54°
30°
27
56°
45°
28
65°
47°
29
68°
47°
30
68°
49°
31
67°
45°
1
69°
36°
2
69°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Austin
Austin's December 2026 forecast shows daily high temperatures ranging from 52° to 73°, with overnight lows between 27° and 50°. The average high for December is 64° 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 Austin. See also: January | February | March.
