S
M
T
W
T
F
S
28
33°
17°
29
38°
19°
30
48°
26°
31
46°
29°
1
44°
30°
2
45°
28°
3
42°
30°
4
38°
32°
5
42°
23°
6
44°
22°
7
38°
27°
8
28°
11°
9
35°
0°
10
41°
9°
11
44°
17°
12
46°
20°
13
51°
29°
14
54°
33°
15
49°
33°
16
48°
30°
17
50°
28°
18
48°
31°
19
45°
25°
20
49°
27°
21
52°
31°
22
52°
29°
23
45°
25°
24
34°
15°
25
42°
14°
26
48°
24°
27
47°
21°
28
42°
22°
29
47°
22°
30
57°
28°
31
58°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Austin
Austin's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Austin. See also: February | March | April.