S
M
T
W
T
F
S
28
69°
44°
29
72°
43°
30
71°
38°
1
70°
45°
2
73°
43°
3
77°
42°
4
74°
36°
5
70°
40°
6
73°
48°
7
81°
49°
8
84°
51°
9
85°
49°
10
86°
51°
11
86°
52°
12
88°
51°
13
76°
45°
14
82°
44°
15
81°
50°
16
84°
46°
17
78°
49°
18
78°
52°
19
Hist. Avg.
82°
46°
20
Hist. Avg.
82°
46°
21
Hist. Avg.
82°
46°
22
Hist. Avg.
82°
46°
23
Hist. Avg.
82°
46°
24
Hist. Avg.
82°
46°
25
Hist. Avg.
82°
46°
26
Hist. Avg.
83°
46°
27
Hist. Avg.
83°
46°
28
Hist. Avg.
83°
46°
29
Hist. Avg.
83°
46°
30
Hist. Avg.
83°
46°
31
Hist. Avg.
83°
46°
1
Hist. Avg.
82°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Sun Valley
Sun Valley's July 2026 forecast shows daily high temperatures ranging from 69° to 88°, with overnight lows between 36° and 52°. The average high for July is 78° 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 July weather will actually feel in Sun Valley. See also: August | September | October.
