S
M
T
W
T
F
S
28
85°
66°
29
91°
77°
30
91°
77°
1
91°
76°
2
90°
69°
3
88°
68°
4
82°
68°
5
83°
68°
6
84°
59°
7
85°
62°
8
87°
69°
9
82°
67°
10
83°
65°
11
85°
66°
12
85°
66°
13
90°
68°
14
89°
67°
15
89°
67°
16
93°
69°
17
92°
67°
18
91°
66°
19
93°
74°
20
86°
67°
21
80°
63°
22
80°
65°
23
82°
67°
24
81°
65°
25
81°
67°
26
86°
67°
27
86°
66°
28
87°
69°
29
88°
69°
30
87°
68°
31
86°
69°
1
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Long Grove
Long Grove's July 2026 forecast shows daily high temperatures ranging from 80° to 93°, with overnight lows between 59° and 74°. The average high for July is 86° 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 Long Grove. See also: August | September | October.