S
M
T
W
T
F
S
28
93°
73°
29
97°
72°
30
99°
74°
1
99°
72°
2
99°
71°
3
97°
74°
4
98°
72°
5
95°
74°
6
93°
71°
7
93°
71°
8
93°
71°
9
92°
73°
10
93°
74°
11
91°
71°
12
88°
71°
13
87°
71°
14
88°
72°
15
91°
71°
16
91°
73°
17
89°
71°
18
87°
70°
19
88°
72°
20
91°
71°
21
93°
74°
22
88°
73°
23
88°
73°
24
89°
72°
25
88°
70°
26
88°
71°
27
89°
71°
28
86°
72°
29
87°
72°
30
88°
71°
31
88°
73°
1
89°
72°
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 86° to 93°, with overnight lows between 70° and 74°. The average high for July is 89° 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 Gurnee. See also: August | September | October.