S
M
T
W
T
F
S
28
80°
61°
29
93°
73°
30
94°
79°
1
95°
80°
2
94°
72°
3
87°
70°
4
83°
66°
5
75°
66°
6
79°
65°
7
85°
62°
8
89°
64°
9
86°
70°
10
80°
66°
11
82°
65°
12
86°
66°
13
91°
74°
14
95°
74°
15
94°
74°
16
93°
75°
17
88°
72°
18
87°
71°
19
86°
68°
20
84°
65°
21
84°
67°
22
85°
68°
23
85°
67°
24
84°
66°
25
88°
71°
26
90°
72°
27
84°
70°
28
85°
66°
29
79°
63°
30
78°
63°
31
81°
68°
1
85°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mount Prospect
Mount Prospect's July 2026 forecast shows daily high temperatures ranging from 78° to 95°, with overnight lows between 63° and 75°. The average high for July is 86° with an average low of 69°. 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 Mount Prospect. See also: August | September | October.
