S
M
T
W
T
F
S
28
64°
45°
29
72°
52°
30
80°
57°
1
84°
58°
2
86°
52°
3
90°
58°
4
97°
62°
5
98°
61°
6
93°
70°
7
97°
61°
8
97°
66°
9
94°
62°
10
103°
64°
11
104°
69°
12
95°
65°
13
96°
75°
14
89°
70°
15
97°
68°
16
103°
69°
17
98°
72°
18
99°
69°
19
96°
64°
20
104°
70°
21
97°
73°
22
91°
70°
23
100°
69°
24
102°
69°
25
101°
69°
26
92°
63°
27
94°
62°
28
96°
63°
29
94°
62°
30
97°
67°
31
102°
66°
1
101°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Boise
Boise's July 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for July 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 July weather will actually feel in Boise. See also: August | September | October.