S
M
T
W
T
F
S
26
98°
69°
27
93°
68°
28
98°
69°
29
98°
69°
30
97°
68°
31
91°
63°
1
86°
59°
2
88°
63°
3
95°
68°
4
97°
68°
5
94°
67°
6
97°
68°
7
93°
65°
8
90°
66°
9
93°
67°
10
96°
67°
11
95°
66°
12
96°
67°
13
97°
68°
14
96°
69°
15
95°
67°
16
95°
68°
17
94°
67°
18
95°
67°
19
94°
66°
20
94°
67°
21
93°
66°
22
94°
67°
23
94°
66°
24
92°
56°
25
86°
54°
26
82°
59°
27
86°
61°
28
91°
59°
29
93°
58°
30
95°
62°
31
95°
55°
1
88°
52°
2
80°
53°
3
82°
57°
4
90°
61°
5
89°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Boise Junction
Boise Junction's August 2026 forecast shows daily high temperatures ranging from 80° to 98°, with overnight lows between 52° and 69°. The average high for August is 93° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Boise Junction. See also: September | October | November.
