S
M
T
W
T
F
S
28
103°
75°
29
101°
71°
30
101°
70°
1
101°
64°
2
101°
60°
3
103°
63°
4
102°
73°
5
105°
79°
6
106°
79°
7
70°
47°
8
61°
51°
9
64°
53°
10
65°
52°
11
65°
51°
12
70°
43°
13
65°
41°
14
65°
42°
15
68°
41°
16
64°
40°
17
67°
42°
18
68°
43°
19
71°
45°
20
67°
41°
21
69°
44°
22
70°
45°
23
70°
45°
24
69°
44°
25
66°
42°
26
69°
45°
27
69°
45°
28
68°
44°
29
66°
44°
30
68°
43°
31
68°
44°
1
66°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mount Graham International Observatory
Mount Graham International Observatory's July 2026 forecast shows daily high temperatures ranging from 61° to 71°, with overnight lows between 40° and 53°. The average high for July is 67° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Mount Graham International Observatory. See also: August | September | October.