S
M
T
W
T
F
S
29
82°
45°
30
84°
64°
31
84°
66°
1
86°
64°
2
82°
68°
3
86°
68°
4
81°
64°
5
68°
54°
6
72°
46°
7
77°
41°
8
79°
50°
9
81°
54°
10
82°
54°
11
84°
57°
12
84°
55°
13
82°
68°
14
84°
64°
15
84°
61°
16
86°
63°
17
84°
66°
18
82°
52°
19
72°
48°
20
79°
43°
21
76°
58°
22
78°
61°
23
84°
62°
24
85°
64°
25
84°
64°
26
84°
71°
27
86°
68°
28
82°
65°
29
86°
66°
30
80°
61°
1
75°
59°
2
76°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lake Forest
Lake Forest's April 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 56° and 71°. The average high for April is 81° 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 April weather will actually feel in Lake Forest. See also: May | June | July.
