S
M
T
W
T
F
S
26
111°
88°
27
109°
91°
28
110°
84°
29
108°
89°
30
111°
79°
31
112°
84°
1
115°
83°
2
114°
85°
3
113°
85°
4
112°
82°
5
112°
82°
6
107°
86°
7
108°
88°
8
112°
88°
9
111°
88°
10
106°
87°
11
100°
82°
12
98°
80°
13
90°
76°
14
97°
71°
15
90°
70°
16
101°
76°
17
107°
82°
18
108°
83°
19
109°
82°
20
107°
83°
21
107°
88°
22
109°
85°
23
109°
83°
24
107°
83°
25
106°
82°
26
110°
86°
27
109°
87°
28
106°
88°
29
105°
88°
30
98°
82°
31
100°
75°
1
96°
77°
2
95°
74°
3
99°
74°
4
99°
75°
5
99°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Las Vegas
Las Vegas's August 2026 forecast shows daily high temperatures ranging from 99° to 99°, with overnight lows between 74° and 76°. The average high for August is 99° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Las Vegas. See also: September | October | November.
