S
M
T
W
T
F
S
31
80°
42°
1
81°
43°
2
82°
45°
3
83°
45°
4
82°
43°
5
81°
45°
6
82°
43°
7
83°
45°
8
83°
44°
9
82°
42°
10
82°
42°
11
83°
43°
12
84°
45°
13
86°
45°
14
86°
47°
15
85°
46°
16
82°
45°
17
81°
44°
18
83°
48°
19
80°
47°
20
78°
40°
21
78°
40°
22
79°
41°
23
81°
45°
24
84°
51°
25
85°
49°
26
87°
50°
27
90°
51°
28
90°
48°
29
89°
47°
30
89°
48°
1
90°
52°
2
90°
50°
3
85°
50°
4
86°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Grand Canyon
Grand Canyon's June 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 40° and 52°. The average high for June is 84° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Grand Canyon. See also: July | August | September.