S
M
T
W
T
F
S
26
71°
44°
27
66°
36°
28
69°
39°
29
69°
31°
30
57°
32°
1
36°
32°
2
59°
29°
3
70°
35°
4
72°
47°
5
63°
39°
6
59°
29°
7
69°
27°
8
75°
41°
9
80°
37°
10
63°
39°
11
79°
37°
12
84°
46°
13
82°
43°
14
81°
53°
15
81°
52°
16
83°
48°
17
76°
52°
18
75°
47°
19
66°
34°
20
62°
44°
21
75°
45°
22
78°
37°
23
74°
42°
24
77°
44°
25
76°
46°
26
58°
46°
27
70°
45°
28
75°
44°
29
79°
49°
30
76°
53°
31
58°
45°
1
84°
49°
2
76°
51°
3
74°
47°
4
81°
44°
5
85°
47°
6
83°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Las Vegas
Las Vegas's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May 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 May weather will actually feel in Las Vegas. See also: June | July | August.