S
M
T
W
T
F
S
28
80°
61°
29
93°
73°
30
94°
79°
1
95°
80°
2
95°
74°
3
88°
72°
4
81°
70°
5
81°
66°
6
78°
65°
7
84°
68°
8
85°
66°
9
83°
68°
10
84°
69°
11
83°
67°
12
85°
68°
13
86°
68°
14
85°
69°
15
82°
63°
16
80°
65°
17
77°
60°
18
78°
66°
19
78°
67°
20
79°
67°
21
83°
66°
22
85°
68°
23
85°
67°
24
82°
67°
25
84°
68°
26
85°
68°
27
86°
67°
28
85°
69°
29
86°
67°
30
85°
68°
31
84°
67°
1
78°
64°
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 77° to 95°, with overnight lows between 60° and 74°. The average high for July is 83° 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.
