S
M
T
W
T
F
S
28
90°
59°
29
91°
59°
30
89°
60°
1
93°
61°
2
95°
62°
3
93°
60°
4
85°
58°
5
83°
60°
6
85°
60°
7
84°
58°
8
85°
61°
9
92°
60°
10
96°
57°
11
88°
60°
12
93°
58°
13
94°
57°
14
93°
58°
15
94°
55°
16
92°
61°
17
95°
64°
18
99°
66°
19
100°
63°
20
100°
56°
21
96°
55°
22
94°
60°
23
99°
61°
24
101°
56°
25
95°
51°
26
88°
52°
27
88°
54°
28
90°
62°
29
98°
62°
30
98°
60°
31
95°
64°
1
97°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Nampa
Nampa's July 2026 forecast shows daily high temperatures ranging from 83° to 101°, with overnight lows between 51° and 66°. The average high for July is 93° with an average low of 59°. 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 Nampa. See also: August | September | October.