S
M
T
W
T
F
S
26
87°
71°
27
87°
71°
28
86°
70°
29
88°
70°
30
86°
71°
31
86°
69°
1
80°
66°
2
79°
65°
3
79°
69°
4
82°
70°
5
83°
70°
6
85°
69°
7
86°
70°
8
86°
70°
9
85°
69°
10
85°
70°
11
86°
70°
12
87°
69°
13
86°
69°
14
88°
62°
15
86°
63°
16
82°
66°
17
81°
65°
18
85°
64°
19
86°
61°
20
79°
59°
21
78°
59°
22
78°
61°
23
79°
61°
24
78°
60°
25
79°
65°
26
78°
63°
27
85°
61°
28
84°
60°
29
77°
59°
30
76°
59°
31
76°
60°
1
77°
59°
2
75°
57°
3
76°
58°
4
77°
58°
5
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Riverwoods
Riverwoods's August 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 57° and 71°. The average high for August is 82° 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 Riverwoods. See also: September | October | November.
