S
M
T
W
T
F
S
29
64°
42°
30
70°
40°
1
69°
41°
2
68°
49°
3
65°
43°
4
72°
41°
5
66°
47°
6
67°
50°
7
67°
47°
8
70°
48°
9
65°
40°
10
69°
34°
11
60°
34°
12
60°
37°
13
62°
33°
14
57°
32°
15
55°
35°
16
53°
35°
17
56°
34°
18
58°
34°
19
55°
42°
20
60°
45°
21
63°
47°
22
69°
42°
23
66°
31°
24
60°
36°
25
57°
34°
26
65°
43°
27
50°
30°
28
63°
43°
29
68°
31°
30
Hist. Avg.
62°
42°
31
Hist. Avg.
62°
42°
1
Hist. Avg.
62°
42°
2
Hist. Avg.
62°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Austin
Austin's December 2026 forecast shows daily high temperatures ranging from 50° to 72°, with overnight lows between 30° and 50°. The average high for December is 63° with an average low of 39°. 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.
