S
M
T
W
T
F
S
29
90°
54°
30
89°
59°
31
84°
60°
1
77°
55°
2
83°
46°
3
83°
54°
4
81°
44°
5
83°
56°
6
70°
58°
7
81°
51°
8
88°
50°
9
91°
51°
10
90°
59°
11
86°
52°
12
85°
52°
13
79°
53°
14
76°
55°
15
79°
43°
16
84°
42°
17
49°
29°
18
46°
33°
19
46°
30°
20
44°
32°
21
47°
34°
22
58°
29°
23
51°
25°
24
50°
22°
25
51°
24°
26
50°
23°
27
51°
25°
28
52°
24°
29
55°
25°
30
54°
26°
1
52°
29°
2
56°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mount Graham International Observatory
Mount Graham International Observatory's April 2026 forecast shows daily high temperatures ranging from 44° to 58°, with overnight lows between 22° and 34°. The average high for April is 51° with an average low of 28°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Mount Graham International Observatory. See also: May | June | July.
