S
M
T
W
T
F
S
26
82°
64°
27
81°
64°
28
82°
65°
29
82°
63°
30
83°
64°
31
79°
62°
1
76°
58°
2
76°
59°
3
77°
61°
4
78°
60°
5
80°
63°
6
83°
64°
7
84°
65°
8
84°
64°
9
83°
63°
10
83°
63°
11
84°
62°
12
84°
63°
13
83°
64°
14
86°
56°
15
78°
59°
16
80°
56°
17
76°
55°
18
81°
54°
19
80°
52°
20
76°
51°
21
75°
52°
22
75°
53°
23
76°
51°
24
76°
56°
25
79°
54°
26
81°
59°
27
83°
57°
28
84°
51°
29
76°
51°
30
73°
52°
31
73°
51°
1
74°
49°
2
73°
49°
3
74°
50°
4
76°
54°
5
74°
56°
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 73° to 86°, with overnight lows between 49° and 65°. The average high for August is 79° with an average low of 58°. 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.
