S
M
T
W
T
F
S
29
72°
51°
30
74°
52°
1
76°
47°
2
73°
38°
3
70°
36°
4
59°
36°
5
57°
39°
6
58°
43°
7
59°
40°
8
58°
35°
9
58°
35°
10
59°
43°
11
59°
41°
12
65°
47°
13
64°
43°
14
69°
36°
15
66°
43°
16
63°
39°
17
66°
36°
18
56°
38°
19
57°
43°
20
Hist. Avg.
63°
43°
21
Hist. Avg.
63°
42°
22
Hist. Avg.
63°
42°
23
Hist. Avg.
63°
42°
24
Hist. Avg.
62°
42°
25
Hist. Avg.
62°
42°
26
Hist. Avg.
62°
42°
27
Hist. Avg.
62°
42°
28
Hist. Avg.
62°
42°
29
Hist. Avg.
62°
42°
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 56° to 76°, with overnight lows between 35° and 52°. The average high for December is 64° 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 Austin. See also: January | February | March.
