S
M
T
W
T
F
S
26
96°
62°
27
97°
63°
28
93°
62°
29
94°
60°
30
97°
59°
31
88°
60°
1
83°
55°
2
91°
54°
3
97°
60°
4
85°
59°
5
93°
60°
6
92°
57°
7
91°
55°
8
92°
57°
9
93°
60°
10
92°
55°
11
91°
57°
12
93°
57°
13
89°
58°
14
87°
58°
15
84°
56°
16
84°
52°
17
82°
53°
18
91°
58°
19
88°
53°
20
87°
56°
21
87°
57°
22
88°
57°
23
89°
60°
24
89°
57°
25
86°
56°
26
85°
57°
27
83°
51°
28
87°
54°
29
90°
56°
30
88°
58°
31
86°
57°
1
81°
55°
2
85°
55°
3
86°
54°
4
85°
63°
5
85°
59°
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 ° to °, with overnight lows between ° and °. The average high for August 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 August weather will actually feel in Las Vegas. See also: September | October | November.