S
M
T
W
T
F
S
29
64°
34°
30
61°
37°
31
54°
39°
1
54°
37°
2
39°
32°
3
54°
27°
4
57°
30°
5
63°
36°
6
72°
37°
7
66°
37°
8
64°
36°
9
64°
39°
10
65°
39°
11
51°
34°
12
47°
29°
13
48°
27°
14
46°
31°
15
45°
26°
16
45°
28°
17
48°
31°
18
46°
30°
19
45°
29°
20
47°
29°
21
48°
28°
22
54°
28°
23
46°
23°
24
46°
23°
25
47°
26°
26
47°
25°
27
48°
25°
28
48°
24°
29
49°
25°
30
49°
25°
1
50°
26°
2
51°
30°
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 45° to 65°, with overnight lows between 23° and 39°. The average high for April is 49° with an average low of 28°. 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.
