S
M
T
W
T
F
S
28
94°
76°
29
93°
75°
30
94°
74°
1
92°
75°
2
92°
76°
3
92°
71°
4
90°
75°
5
89°
74°
6
88°
75°
7
87°
75°
8
88°
76°
9
88°
76°
10
87°
75°
11
87°
76°
12
88°
76°
13
89°
77°
14
89°
77°
15
88°
76°
16
88°
77°
17
89°
76°
18
90°
76°
19
89°
76°
20
90°
77°
21
91°
76°
22
90°
76°
23
89°
75°
24
88°
75°
25
87°
74°
26
87°
76°
27
89°
75°
28
89°
76°
29
91°
76°
30
92°
77°
31
91°
77°
1
90°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lake Forest
Lake Forest's July 2026 forecast shows daily high temperatures ranging from 87° to 94°, with overnight lows between 71° and 77°. The average high for July is 90° with an average low of 76°. 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 Lake Forest. See also: August | September | October.
