S
M
T
W
T
F
S
31
72°
45°
1
72°
49°
2
70°
53°
3
78°
57°
4
82°
64°
5
85°
67°
6
88°
65°
7
84°
64°
8
83°
65°
9
82°
64°
10
78°
63°
11
84°
64°
12
84°
62°
13
82°
61°
14
81°
62°
15
79°
58°
16
73°
57°
17
74°
57°
18
75°
58°
19
76°
58°
20
79°
60°
21
79°
64°
22
76°
63°
23
77°
65°
24
78°
64°
25
78°
60°
26
77°
63°
27
84°
65°
28
83°
66°
29
79°
61°
30
78°
60°
1
78°
60°
2
79°
63°
3
82°
67°
4
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in South Mountain
South Mountain's June 2026 forecast shows daily high temperatures ranging from 70° to 88°, with overnight lows between 49° and 67°. The average high for June is 79° with an average low of 62°. 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 South Mountain. See also: July | August | September.