S
M
T
W
T
F
S
28
94°
76°
29
95°
75°
30
90°
74°
1
89°
73°
2
93°
74°
3
92°
75°
4
93°
75°
5
92°
76°
6
90°
74°
7
91°
75°
8
88°
74°
9
88°
76°
10
87°
75°
11
87°
74°
12
88°
76°
13
89°
76°
14
89°
75°
15
88°
76°
16
88°
76°
17
89°
75°
18
90°
76°
19
90°
77°
20
92°
77°
21
92°
76°
22
91°
76°
23
92°
77°
24
92°
77°
25
91°
76°
26
92°
77°
27
92°
77°
28
91°
76°
29
92°
77°
30
92°
77°
31
91°
76°
1
91°
77°
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 95°, with overnight lows between 73° and 77°. The average high for July is 91° 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.
