S
M
T
W
T
F
S
29
57°
35°
30
56°
36°
1
56°
35°
2
55°
37°
3
56°
33°
4
54°
33°
5
55°
34°
6
55°
33°
7
56°
33°
8
57°
37°
9
59°
37°
10
60°
35°
11
62°
34°
12
53°
32°
13
52°
31°
14
51°
31°
15
52°
32°
16
52°
31°
17
53°
32°
18
53°
33°
19
55°
36°
20
61°
32°
21
52°
31°
22
52°
31°
23
53°
32°
24
51°
31°
25
52°
31°
26
52°
34°
27
54°
35°
28
57°
35°
29
57°
34°
30
59°
36°
31
58°
35°
1
61°
35°
2
57°
36°
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 51° to 62°, with overnight lows between 31° and 37°. The average high for December is 55° 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.
