S
M
T
W
T
F
S
26
88°
67°
27
89°
70°
28
90°
70°
29
90°
69°
30
89°
70°
31
90°
71°
1
89°
71°
2
90°
70°
3
89°
70°
4
88°
69°
5
89°
69°
6
90°
68°
7
82°
67°
8
84°
67°
9
86°
68°
10
88°
70°
11
90°
69°
12
89°
69°
13
89°
68°
14
87°
68°
15
87°
67°
16
85°
65°
17
86°
64°
18
86°
65°
19
85°
64°
20
84°
65°
21
86°
61°
22
85°
55°
23
79°
55°
24
78°
56°
25
78°
55°
26
77°
59°
27
78°
60°
28
80°
63°
29
84°
63°
30
85°
62°
31
86°
62°
1
87°
61°
2
84°
61°
3
83°
60°
4
83°
62°
5
84°
60°
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 77° to 90°, with overnight lows between 55° and 71°. The average high for August is 86° 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 August weather will actually feel in Elgin. See also: September | October | November.
