S
M
T
W
T
F
S
29
55°
26°
30
73°
37°
31
75°
62°
1
66°
35°
2
51°
33°
3
69°
51°
4
64°
38°
5
58°
38°
6
51°
28°
7
45°
20°
8
56°
21°
9
69°
37°
10
68°
40°
11
56°
31°
12
81°
39°
13
81°
59°
14
82°
59°
15
N/A
16
72°
52°
17
71°
56°
18
65°
34°
19
46°
26°
20
49°
33°
21
61°
40°
22
61°
35°
23
58°
38°
24
58°
36°
25
55°
39°
26
52°
39°
27
55°
38°
28
59°
39°
29
56°
38°
30
62°
40°
1
63°
41°
2
56°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in South Lyon
South Lyon's April 2026 forecast shows daily high temperatures ranging from 46° to 72°, with overnight lows between 26° and 56°. The average high for April is 59° with an average low of 39°. 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 South Lyon. See also: May | June | July.
