S
M
T
W
T
F
S
29
63°
40°
30
72°
57°
31
82°
63°
1
82°
60°
2
82°
59°
3
77°
58°
4
80°
64°
5
72°
55°
6
67°
47°
7
76°
47°
8
65°
50°
9
69°
46°
10
76°
46°
11
85°
50°
12
84°
54°
13
80°
56°
14
84°
57°
15
85°
57°
16
85°
60°
17
87°
61°
18
85°
60°
19
70°
50°
20
76°
42°
21
76°
48°
22
82°
53°
23
83°
53°
24
82°
59°
25
76°
60°
26
83°
56°
27
78°
57°
28
77°
63°
29
77°
58°
30
77°
50°
1
72°
53°
2
69°
46°
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 69° to 83°, with overnight lows between 46° and 63°. The average high for April is 77° with an average low of 56°. 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.
