S
M
T
W
T
F
S
26
89°
70°
27
84°
71°
28
81°
62°
29
80°
58°
30
84°
57°
31
78°
65°
1
72°
66°
2
77°
63°
3
83°
59°
4
85°
68°
5
78°
65°
6
80°
65°
7
84°
67°
8
85°
66°
9
85°
68°
10
86°
68°
11
84°
63°
12
83°
63°
13
82°
62°
14
81°
63°
15
79°
63°
16
80°
62°
17
82°
61°
18
87°
66°
19
88°
66°
20
82°
65°
21
85°
65°
22
86°
66°
23
86°
66°
24
83°
65°
25
82°
65°
26
84°
64°
27
81°
62°
28
78°
64°
29
82°
64°
30
83°
63°
31
83°
63°
1
84°
62°
2
79°
63°
3
81°
62°
4
81°
62°
5
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Elgin
South Elgin's August 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 61° and 68°. The average high for August is 83° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in South Elgin. See also: September | October | November.
