S
M
T
W
T
F
S
26
89°
68°
27
84°
69°
28
82°
66°
29
80°
63°
30
85°
60°
31
77°
67°
1
71°
65°
2
78°
66°
3
83°
62°
4
85°
65°
5
81°
69°
6
80°
67°
7
85°
66°
8
83°
66°
9
86°
64°
10
89°
72°
11
79°
66°
12
83°
67°
13
76°
67°
14
79°
70°
15
78°
72°
16
85°
67°
17
82°
64°
18
83°
68°
19
81°
60°
20
75°
60°
21
76°
58°
22
77°
60°
23
78°
61°
24
81°
61°
25
80°
62°
26
79°
60°
27
80°
59°
28
79°
58°
29
76°
59°
30
79°
62°
31
73°
60°
1
72°
62°
2
72°
59°
3
71°
56°
4
72°
56°
5
74°
59°
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 71° to 85°, with overnight lows between 56° and 72°. The average high for August is 77° with an average low of 61°. 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.
