S
M
T
W
T
F
S
28
80°
61°
29
93°
73°
30
94°
79°
1
95°
80°
2
94°
72°
3
87°
70°
4
83°
66°
5
75°
66°
6
79°
65°
7
85°
62°
8
89°
64°
9
86°
70°
10
80°
66°
11
80°
63°
12
85°
65°
13
93°
73°
14
95°
74°
15
94°
74°
16
93°
75°
17
93°
77°
18
91°
67°
19
83°
67°
20
85°
67°
21
79°
63°
22
80°
63°
23
83°
67°
24
83°
66°
25
85°
67°
26
82°
63°
27
83°
67°
28
83°
64°
29
78°
61°
30
76°
61°
31
79°
66°
1
83°
67°
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 76° to 95°, with overnight lows between 61° and 77°. The average high for July is 85° 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 Lake Forest. See also: August | September | October.
