S
M
T
W
T
F
S
29
60°
29°
30
74°
46°
31
83°
59°
1
80°
55°
2
56°
43°
3
67°
43°
4
82°
48°
5
58°
46°
6
51°
38°
7
49°
25°
8
52°
29°
9
59°
34°
10
69°
47°
11
67°
38°
12
63°
44°
13
77°
54°
14
78°
55°
15
66°
42°
16
57°
40°
17
60°
42°
18
62°
43°
19
67°
40°
20
67°
47°
21
67°
47°
22
69°
49°
23
70°
48°
24
71°
46°
25
69°
41°
26
60°
42°
27
58°
38°
28
61°
41°
29
61°
38°
30
59°
38°
1
61°
41°
2
61°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Lyons
Lyons's April 2026 forecast shows daily high temperatures ranging from 49° to 78°, with overnight lows between 25° and 55°. The average high for April is 63° with an average low of 42°. 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 Lyons. See also: May | June | July.