S
M
T
W
T
F
S
29
73°
46°
30
73°
54°
31
70°
54°
1
63°
48°
2
68°
45°
3
68°
46°
4
54°
36°
5
57°
39°
6
59°
36°
7
54°
41°
8
68°
39°
9
72°
48°
10
72°
48°
11
57°
45°
12
66°
50°
13
66°
48°
14
63°
50°
15
63°
41°
16
68°
41°
17
68°
31°
18
59°
34°
19
64°
37°
20
65°
45°
21
71°
50°
22
74°
44°
23
70°
43°
24
60°
34°
25
59°
36°
26
62°
39°
27
63°
39°
28
64°
40°
29
69°
41°
30
68°
37°
1
64°
39°
2
68°
41°
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 59° to 74°, with overnight lows between 31° and 50°. The average high for April is 66° with an average low of 39°. 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.
