S
M
T
W
T
F
S
26
100°
77°
27
104°
77°
28
105°
81°
29
104°
80°
30
102°
80°
31
101°
79°
1
100°
79°
2
101°
76°
3
98°
76°
4
99°
78°
5
101°
81°
6
104°
79°
7
101°
78°
8
101°
79°
9
103°
81°
10
102°
83°
11
103°
80°
12
102°
76°
13
103°
77°
14
104°
79°
15
97°
75°
16
98°
73°
17
Hist. Avg.
99°
78°
18
Hist. Avg.
98°
77°
19
Hist. Avg.
98°
77°
20
Hist. Avg.
98°
77°
21
Hist. Avg.
98°
77°
22
Hist. Avg.
98°
77°
23
Hist. Avg.
98°
77°
24
Hist. Avg.
97°
77°
25
Hist. Avg.
97°
76°
26
Hist. Avg.
97°
76°
27
Hist. Avg.
97°
76°
28
Hist. Avg.
96°
76°
29
Hist. Avg.
96°
76°
30
Hist. Avg.
96°
76°
31
Hist. Avg.
96°
76°
1
Hist. Avg.
96°
75°
2
Hist. Avg.
95°
75°
3
Hist. Avg.
95°
75°
4
Hist. Avg.
95°
75°
5
Hist. Avg.
94°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Boulder City
Boulder City's August 2026 forecast shows daily high temperatures ranging from 97° to 105°, with overnight lows between 73° and 83°. The average high for August is 102° with an average low of 78°. 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.
