S
M
T
W
T
F
S
28
69°
51°
29
74°
54°
30
81°
59°
1
89°
64°
2
94°
65°
3
95°
65°
4
95°
66°
5
90°
59°
6
94°
65°
7
95°
66°
8
94°
65°
9
88°
62°
10
86°
62°
11
86°
63°
12
93°
66°
13
96°
66°
14
96°
67°
15
94°
67°
16
96°
66°
17
97°
67°
18
97°
68°
19
98°
69°
20
98°
69°
21
97°
68°
22
98°
69°
23
97°
68°
24
98°
69°
25
98°
69°
26
97°
68°
27
99°
69°
28
98°
69°
29
93°
67°
30
87°
61°
31
88°
63°
1
93°
68°
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 69° to 99°, with overnight lows between 51° and 69°. The average high for July is 93° with an average low of 65°. 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.