S
M
T
W
T
F
S
31
77°
47°
1
67°
45°
2
69°
54°
3
69°
49°
4
66°
51°
5
67°
47°
6
66°
45°
7
66°
47°
8
71°
46°
9
68°
49°
10
67°
51°
11
66°
47°
12
69°
49°
13
72°
52°
14
77°
56°
15
78°
57°
16
72°
50°
17
71°
49°
18
68°
55°
19
77°
55°
20
73°
53°
21
77°
54°
22
71°
50°
23
68°
49°
24
69°
48°
25
71°
56°
26
79°
55°
27
82°
61°
28
82°
59°
29
81°
52°
30
73°
61°
1
80°
59°
2
73°
51°
3
72°
52°
4
71°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Boise
Boise's June 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 45° and 61°. The average high for June is 72° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Boise. See also: July | August | September.