S
M
T
W
T
F
S
28
84°
55°
29
89°
61°
30
93°
67°
1
95°
76°
2
94°
71°
3
93°
70°
4
86°
67°
5
82°
69°
6
81°
66°
7
85°
59°
8
87°
62°
9
85°
63°
10
84°
66°
11
84°
60°
12
86°
57°
13
91°
65°
14
98°
70°
15
95°
64°
16
87°
65°
17
85°
67°
18
86°
65°
19
82°
62°
20
80°
58°
21
78°
59°
22
79°
62°
23
79°
59°
24
81°
61°
25
80°
60°
26
86°
65°
27
82°
64°
28
79°
62°
29
76°
57°
30
76°
58°
31
79°
63°
1
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in South Lyon
South Lyon's July 2026 forecast shows daily high temperatures ranging from 76° to 98°, with overnight lows between 57° and 70°. The average high for July is 83° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in South Lyon. See also: August | September | October.
