S
M
T
W
T
F
S
28
94°
75°
29
95°
75°
30
96°
78°
1
96°
79°
2
98°
78°
3
95°
76°
4
93°
75°
5
94°
72°
6
91°
73°
7
93°
74°
8
93°
74°
9
90°
73°
10
89°
74°
11
92°
73°
12
89°
71°
13
87°
71°
14
89°
73°
15
96°
72°
16
96°
72°
17
95°
73°
18
91°
73°
19
92°
74°
20
93°
71°
21
92°
73°
22
92°
74°
23
91°
73°
24
88°
71°
25
86°
71°
26
86°
70°
27
87°
71°
28
86°
71°
29
86°
70°
30
87°
72°
31
88°
73°
1
87°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Grant Park
Grant Park's July 2026 forecast shows daily high temperatures ranging from 86° to 96°, with overnight lows between 70° and 74°. The average high for July is 90° with an average low of 72°. 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 Grant Park. See also: August | September | October.
