S
M
T
W
T
F
S
26
85°
71°
27
84°
70°
28
84°
69°
29
85°
69°
30
84°
68°
1
84°
68°
2
85°
69°
3
84°
69°
4
84°
70°
5
85°
70°
6
86°
72°
7
85°
71°
8
85°
71°
9
86°
72°
10
85°
72°
11
85°
71°
12
86°
72°
13
85°
72°
14
85°
71°
15
86°
72°
16
85°
72°
17
86°
71°
18
86°
73°
19
87°
72°
20
86°
71°
21
87°
72°
22
89°
71°
23
90°
72°
24
90°
72°
25
89°
71°
26
90°
71°
27
90°
70°
28
89°
71°
29
89°
71°
30
90°
70°
31
89°
72°
1
90°
71°
2
90°
72°
3
89°
71°
4
91°
70°
5
90°
71°
6
91°
70°
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 84° to 91°, with overnight lows between 68° and 73°. The average high for May is 87° with an average low of 71°. 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.
