S
M
T
W
T
F
S
26
83°
61°
27
87°
63°
28
85°
62°
29
85°
62°
30
79°
61°
31
79°
57°
1
80°
60°
2
80°
61°
3
79°
61°
4
81°
62°
5
88°
63°
6
89°
63°
7
90°
62°
8
88°
62°
9
89°
63°
10
89°
63°
11
88°
62°
12
89°
63°
13
87°
62°
14
80°
51°
15
79°
50°
16
79°
51°
17
82°
50°
18
81°
49°
19
80°
51°
20
77°
53°
21
77°
49°
22
84°
49°
23
79°
57°
24
84°
56°
25
86°
57°
26
86°
57°
27
85°
46°
28
79°
45°
29
74°
47°
30
73°
50°
31
74°
51°
1
74°
50°
2
79°
54°
3
82°
51°
4
76°
50°
5
72°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Elgin
Elgin's August 2026 forecast shows daily high temperatures ranging from 72° to 90°, with overnight lows between 45° and 63°. The average high for August is 82° with an average low of 56°. 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 Elgin. See also: September | October | November.
