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°
45°
9
76°
50°
10
72°
50°
11
69°
46°
12
57°
40°
13
57°
41°
14
63°
44°
15
61°
46°
16
59°
43°
17
62°
45°
18
62°
43°
19
60°
45°
20
60°
43°
21
64°
40°
22
58°
42°
23
57°
36°
24
56°
35°
25
57°
38°
26
57°
37°
27
59°
40°
28
59°
37°
29
60°
36°
30
60°
38°
1
61°
37°
2
61°
46°
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 56° to 76°, with overnight lows between 35° and 50°. The average high for April is 61° 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 Boise. See also: May | June | July.
