S
M
T
W
T
F
S
29
64°
35°
30
75°
44°
31
79°
54°
1
81°
57°
2
79°
58°
3
79°
58°
4
81°
55°
5
81°
66°
6
68°
52°
7
70°
49°
8
64°
43°
9
71°
41°
10
75°
45°
11
85°
50°
12
75°
55°
13
82°
55°
14
84°
61°
15
85°
63°
16
84°
65°
17
89°
65°
18
88°
63°
19
81°
47°
20
73°
43°
21
66°
45°
22
80°
45°
23
87°
60°
24
88°
61°
25
87°
64°
26
70°
53°
27
68°
49°
28
75°
44°
29
72°
64°
30
74°
55°
1
70°
59°
2
60°
48°
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 60° to 74°, with overnight lows between 48° and 64°. The average high for April is 69° with an average low of 57°. 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.
