S
M
T
W
T
F
S
28
82°
73°
29
91°
76°
30
93°
78°
1
93°
79°
2
92°
77°
3
89°
74°
4
86°
72°
5
82°
72°
6
84°
73°
7
82°
71°
8
81°
65°
9
77°
68°
10
84°
71°
11
80°
70°
12
79°
70°
13
80°
69°
14
82°
70°
15
84°
71°
16
85°
73°
17
86°
73°
18
85°
72°
19
84°
72°
20
82°
71°
21
82°
72°
22
83°
72°
23
85°
73°
24
84°
72°
25
82°
71°
26
82°
73°
27
85°
74°
28
86°
73°
29
85°
73°
30
84°
72°
31
78°
72°
1
81°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Chicago
Chicago's July 2026 forecast shows daily high temperatures ranging from 77° to 93°, with overnight lows between 65° and 79°. The average high for July is 84° 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 Chicago. See also: August | September | October.