S
M
T
W
T
F
S
26
89°
72°
27
90°
70°
28
89°
68°
29
89°
69°
30
91°
68°
31
89°
70°
1
89°
71°
2
90°
71°
3
91°
73°
4
92°
70°
5
90°
73°
6
91°
72°
7
93°
69°
8
93°
71°
9
94°
72°
10
93°
71°
11
92°
72°
12
93°
72°
13
89°
71°
14
89°
70°
15
90°
72°
16
92°
72°
17
93°
71°
18
93°
71°
19
92°
70°
20
90°
67°
21
89°
68°
22
92°
71°
23
93°
70°
24
88°
71°
25
89°
68°
26
88°
68°
27
92°
71°
28
92°
70°
29
91°
66°
30
87°
68°
31
87°
67°
1
88°
69°
2
90°
69°
3
90°
68°
4
89°
69°
5
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wilton
Wilton's August 2026 forecast shows daily high temperatures ranging from 85° to 94°, with overnight lows between 66° and 73°. The average high for August is 90° with an average low of 70°. 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 Wilton. See also: September | October | November.