S
M
T
W
T
F
S
31
83°
57°
1
80°
60°
2
79°
59°
3
82°
57°
4
82°
59°
5
78°
61°
6
77°
63°
7
77°
61°
8
76°
62°
9
80°
60°
10
86°
63°
11
88°
65°
12
92°
64°
13
85°
64°
14
87°
62°
15
86°
62°
16
83°
60°
17
79°
60°
18
76°
60°
19
75°
60°
20
75°
56°
21
76°
58°
22
82°
59°
23
82°
61°
24
85°
60°
25
81°
60°
26
80°
62°
27
77°
60°
28
76°
59°
29
77°
60°
30
74°
61°
1
78°
59°
2
79°
61°
3
87°
63°
4
90°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sun Valley
Sun Valley's June 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 59° and 64°. The average high for June is 81° 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 June weather will actually feel in Sun Valley. See also: July | August | September.
