S
M
T
W
T
F
S
28
68°
52°
29
64°
54°
30
64°
52°
1
66°
48°
2
72°
52°
3
77°
55°
4
75°
54°
5
77°
52°
6
86°
50°
7
79°
52°
8
75°
54°
9
81°
50°
10
79°
52°
11
77°
59°
12
73°
52°
13
81°
46°
14
86°
50°
15
86°
54°
16
64°
55°
17
73°
57°
18
75°
55°
19
79°
50°
20
84°
54°
21
95°
61°
22
97°
61°
23
78°
56°
24
84°
57°
25
75°
57°
26
75°
56°
27
78°
54°
28
79°
51°
29
80°
52°
30
82°
50°
31
79°
51°
1
79°
52°
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 75° to 84°, with overnight lows between 50° and 57°. The average high for July is 79° with an average low of 54°. 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.