S
M
T
W
T
F
S
26
103°
81°
27
103°
75°
28
99°
79°
29
102°
75°
30
98°
74°
31
97°
77°
1
99°
77°
2
97°
74°
3
97°
73°
4
98°
74°
5
98°
77°
6
101°
77°
7
102°
78°
8
103°
77°
9
103°
77°
10
104°
79°
11
101°
76°
12
97°
75°
13
97°
74°
14
96°
76°
15
96°
77°
16
97°
78°
17
96°
76°
18
97°
74°
19
96°
72°
20
97°
75°
21
97°
72°
22
97°
73°
23
93°
70°
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 93° to 104°, with overnight lows between 70° and 81°. The average high for August is 99° with an average low of 76°. 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.
