S
M
T
W
T
F
S
26
87°
68°
27
88°
68°
28
86°
67°
29
83°
68°
30
82°
68°
31
87°
67°
1
87°
68°
2
86°
67°
3
89°
67°
4
88°
68°
5
86°
67°
6
83°
66°
7
82°
65°
8
83°
61°
9
82°
61°
10
82°
62°
11
81°
67°
12
85°
67°
13
87°
66°
14
86°
60°
15
81°
60°
16
81°
62°
17
83°
66°
18
80°
60°
19
83°
60°
20
83°
61°
21
84°
61°
22
84°
62°
23
83°
59°
24
84°
58°
25
82°
59°
26
83°
63°
27
84°
64°
28
79°
63°
29
84°
66°
30
84°
63°
31
83°
56°
1
80°
56°
2
77°
57°
3
76°
56°
4
77°
56°
5
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Darien
Darien's August 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 56° and 68°. The average high for August is 83° with an average low of 63°. 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 Darien. See also: September | October | November.
