S
M
T
W
T
F
S
28
86°
70°
29
90°
73°
30
88°
69°
1
89°
66°
2
88°
68°
3
86°
66°
4
83°
65°
5
84°
63°
6
78°
60°
7
79°
61°
8
80°
62°
9
80°
64°
10
79°
67°
11
83°
67°
12
82°
66°
13
84°
65°
14
82°
67°
15
80°
66°
16
80°
64°
17
81°
64°
18
82°
64°
19
81°
67°
20
81°
60°
21
78°
60°
22
79°
62°
23
80°
63°
24
82°
65°
25
84°
67°
26
85°
67°
27
80°
64°
28
79°
62°
29
80°
63°
30
85°
68°
31
86°
67°
1
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in South Elgin
South Elgin's July 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 60° and 73°. The average high for July is 82° with an average low of 65°. 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 Elgin. See also: August | September | October.