S
M
T
W
T
F
S
29
73°
41°
30
60°
43°
31
61°
40°
1
57°
41°
2
48°
37°
3
55°
30°
4
65°
35°
5
73°
42°
6
74°
44°
7
73°
45°
8
70°
39°
9
73°
42°
10
69°
51°
11
65°
49°
12
54°
42°
13
51°
38°
14
60°
37°
15
58°
39°
16
45°
31°
17
53°
29°
18
65°
39°
19
73°
40°
20
80°
46°
21
82°
48°
22
53°
42°
23
59°
42°
24
53°
37°
25
57°
34°
26
59°
34°
27
61°
33°
28
65°
36°
29
68°
48°
30
70°
43°
1
74°
48°
2
80°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Boise
Boise's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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 Boise. See also: May | June | July.
