S
M
T
W
T
F
S
28
76°
62°
29
93°
69°
30
93°
78°
1
93°
77°
2
90°
71°
3
86°
70°
4
85°
68°
5
80°
62°
6
77°
60°
7
85°
64°
8
84°
69°
9
86°
71°
10
80°
69°
11
81°
67°
12
82°
68°
13
85°
67°
14
87°
68°
15
84°
69°
16
80°
65°
17
76°
60°
18
78°
65°
19
77°
67°
20
78°
67°
21
82°
66°
22
84°
68°
23
85°
67°
24
81°
67°
25
84°
66°
26
84°
68°
27
85°
68°
28
84°
67°
29
86°
68°
30
84°
67°
31
83°
66°
1
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Gurnee
Gurnee's July 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 60° and 71°. The average high for July is 82° with an average low of 67°. 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 Gurnee. See also: August | September | October.