S
M
T
W
T
F
S
27
73°
42°
28
74°
46°
29
76°
44°
30
71°
47°
1
77°
60°
2
73°
51°
3
65°
41°
4
74°
40°
5
68°
46°
6
68°
33°
7
75°
44°
8
72°
42°
9
67°
35°
10
73°
48°
11
66°
52°
12
80°
53°
13
85°
62°
14
81°
58°
15
60°
45°
16
66°
51°
17
54°
33°
18
61°
36°
19
66°
39°
20
67°
40°
21
66°
41°
22
62°
44°
23
62°
42°
24
64°
45°
25
63°
46°
26
61°
44°
27
58°
42°
28
57°
42°
29
55°
43°
30
56°
34°
31
47°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in South Lyon
South Lyon's October 2026 forecast shows daily high temperatures ranging from 47° to 67°, with overnight lows between 33° and 46°. The average high for October is 60° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in South Lyon. See also: November | December | January.
