S
M
T
W
T
F
S
28
85°
60°
29
85°
61°
30
86°
62°
1
87°
64°
2
88°
63°
3
87°
64°
4
88°
63°
5
87°
64°
6
89°
62°
7
88°
61°
8
88°
61°
9
87°
59°
10
86°
58°
11
84°
59°
12
84°
59°
13
85°
60°
14
86°
60°
15
87°
61°
16
88°
63°
17
89°
63°
18
90°
62°
19
90°
65°
20
91°
66°
21
91°
66°
22
92°
65°
23
92°
64°
24
91°
64°
25
91°
65°
26
90°
67°
27
91°
67°
28
90°
65°
29
91°
62°
30
86°
63°
31
87°
65°
1
89°
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 84° to 92°, with overnight lows between 58° and 67°. The average high for July is 88° with an average low of 63°. 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.
