S
M
T
W
T
F
S
29
50°
18°
30
65°
40°
31
73°
55°
1
67°
43°
2
43°
35°
3
64°
35°
4
68°
40°
5
52°
38°
6
47°
30°
7
40°
22°
8
52°
25°
9
57°
33°
10
71°
45°
11
62°
35°
12
61°
46°
13
73°
56°
14
82°
57°
15
72°
46°
16
62°
38°
17
63°
41°
18
63°
44°
19
64°
45°
20
65°
46°
21
71°
39°
22
68°
39°
23
58°
36°
24
59°
44°
25
58°
44°
26
57°
41°
27
59°
38°
28
60°
41°
29
60°
38°
30
61°
38°
1
61°
47°
2
71°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Sun Valley
Sun Valley's April 2026 forecast shows daily high temperatures ranging from 52° to 82°, with overnight lows between 25° and 57°. The average high for April is 64° with an average low of 42°. 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 Sun Valley. See also: May | June | July.
