S
M
T
W
T
F
S
26
111°
88°
27
111°
88°
28
108°
82°
29
108°
86°
30
109°
79°
31
111°
79°
1
115°
82°
2
115°
84°
3
113°
82°
4
111°
84°
5
108°
84°
6
108°
86°
7
109°
88°
8
111°
86°
9
111°
86°
10
106°
84°
11
99°
81°
12
97°
77°
13
90°
73°
14
95°
66°
15
93°
66°
16
100°
73°
17
106°
81°
18
109°
81°
19
109°
81°
20
106°
84°
21
108°
86°
22
109°
82°
23
108°
81°
24
104°
82°
25
106°
79°
26
109°
81°
27
109°
86°
28
106°
84°
29
106°
81°
30
100°
78°
31
95°
74°
1
95°
73°
2
97°
71°
3
97°
71°
4
95°
71°
5
93°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Boulder City
Boulder City's August 2026 forecast shows daily high temperatures ranging from 93° to 100°, with overnight lows between 71° and 78°. The average high for August is 96° with an average low of 73°. 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 Boulder City. See also: September | October | November.
