S
M
T
W
T
F
S
26
84°
67°
27
79°
64°
28
79°
62°
29
80°
63°
30
84°
68°
31
85°
66°
1
82°
64°
2
84°
67°
3
87°
59°
4
80°
60°
5
79°
63°
6
80°
59°
7
79°
58°
8
80°
57°
9
79°
57°
10
79°
65°
11
81°
62°
12
81°
62°
13
85°
57°
14
78°
57°
15
81°
58°
16
80°
58°
17
77°
58°
18
78°
57°
19
78°
56°
20
79°
59°
21
81°
63°
22
82°
64°
23
85°
65°
24
86°
65°
25
86°
61°
26
85°
57°
27
81°
62°
28
83°
63°
29
80°
55°
30
81°
54°
31
77°
52°
1
75°
55°
2
74°
54°
3
76°
54°
4
75°
53°
5
73°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Algonquin Township
Algonquin Township's August 2026 forecast shows daily high temperatures ranging from 73° to 87°, with overnight lows between 52° and 68°. The average high for August is 80° with an average low of 60°. 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 Algonquin Township. See also: September | October | November.