S
M
T
W
T
F
S
26
98°
64°
27
98°
56°
28
88°
61°
29
94°
64°
30
96°
64°
31
97°
65°
1
97°
66°
2
98°
65°
3
98°
66°
4
97°
66°
5
96°
64°
6
97°
63°
7
96°
57°
8
89°
58°
9
87°
58°
10
88°
57°
11
88°
55°
12
96°
61°
13
89°
55°
14
89°
56°
15
Hist. Avg.
83°
50°
16
Hist. Avg.
83°
50°
17
Hist. Avg.
83°
50°
18
Hist. Avg.
83°
49°
19
Hist. Avg.
83°
49°
20
Hist. Avg.
83°
49°
21
Hist. Avg.
83°
48°
22
Hist. Avg.
82°
48°
23
Hist. Avg.
82°
48°
24
Hist. Avg.
82°
48°
25
Hist. Avg.
82°
47°
26
Hist. Avg.
82°
47°
27
Hist. Avg.
82°
47°
28
Hist. Avg.
82°
46°
29
Hist. Avg.
82°
46°
30
Hist. Avg.
82°
46°
31
Hist. Avg.
81°
46°
1
Hist. Avg.
81°
45°
2
Hist. Avg.
81°
45°
3
Hist. Avg.
81°
45°
4
Hist. Avg.
80°
44°
5
Hist. Avg.
80°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Grand Canyon Caverns
Grand Canyon Caverns's August 2026 forecast shows daily high temperatures ranging from 87° to 98°, with overnight lows between 55° and 66°. The average high for August is 94° with an average low of 61°. 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 Grand Canyon Caverns. See also: September | October | November.
