S
M
T
W
T
F
S
29
57°
35°
30
57°
34°
1
55°
33°
2
55°
33°
3
56°
34°
4
56°
33°
5
55°
32°
6
55°
34°
7
54°
32°
8
54°
32°
9
55°
33°
10
59°
34°
11
61°
36°
12
62°
35°
13
62°
36°
14
60°
34°
15
56°
35°
16
60°
32°
17
55°
33°
18
54°
32°
19
55°
33°
20
57°
34°
21
58°
32°
22
55°
33°
23
54°
33°
24
59°
34°
25
56°
36°
26
59°
38°
27
56°
31°
28
54°
34°
29
53°
37°
30
61°
34°
31
58°
33°
1
60°
39°
2
61°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Las Vegas
Las Vegas's December 2026 forecast shows daily high temperatures ranging from 53° to 62°, with overnight lows between 31° and 41°. The average high for December is 57° with an average low of 34°. 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 Las Vegas. See also: January | February | March.
