S
M
T
W
T
F
S
28
98°
78°
29
99°
79°
30
96°
77°
1
96°
77°
2
97°
77°
3
99°
78°
4
100°
80°
5
99°
77°
6
100°
76°
7
99°
76°
8
101°
77°
9
101°
79°
10
100°
78°
11
99°
77°
12
99°
77°
13
89°
73°
14
84°
72°
15
84°
75°
16
88°
74°
17
92°
75°
18
95°
76°
19
98°
75°
20
102°
77°
21
101°
76°
22
100°
76°
23
95°
75°
24
95°
76°
25
94°
75°
26
98°
76°
27
101°
79°
28
100°
80°
29
101°
80°
30
101°
79°
31
102°
80°
1
102°
80°
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 102°, with overnight lows between 72° and 80°. The average high for July is 96° 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.
