S
M
T
W
T
F
S
29
67°
41°
30
66°
40°
31
63°
43°
1
57°
41°
2
45°
30°
3
51°
30°
4
57°
26°
5
64°
25°
6
68°
26°
7
70°
36°
8
65°
39°
9
68°
36°
10
76°
35°
11
59°
42°
12
63°
35°
13
54°
35°
14
55°
38°
15
55°
35°
16
43°
26°
17
44°
27°
18
53°
32°
19
62°
37°
20
60°
36°
21
54°
36°
22
58°
36°
23
59°
36°
24
62°
39°
25
72°
43°
26
53°
29°
27
54°
28°
28
56°
34°
29
56°
30°
30
63°
38°
1
56°
37°
2
54°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Idaho Falls
Idaho Falls's April 2026 forecast shows daily high temperatures ranging from 43° to 72°, with overnight lows between 26° and 43°. The average high for April is 56° with an average low of 34°. 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 Idaho Falls. See also: May | June | July.
