S
M
T
W
T
F
S
26
83°
65°
27
84°
60°
28
83°
59°
29
83°
60°
30
85°
63°
31
89°
64°
1
87°
59°
2
83°
59°
3
83°
60°
4
84°
58°
5
83°
59°
6
83°
58°
7
84°
58°
8
83°
59°
9
82°
63°
10
83°
64°
11
82°
64°
12
83°
61°
13
86°
64°
14
88°
58°
15
86°
57°
16
82°
61°
17
86°
63°
18
87°
57°
19
82°
58°
20
81°
57°
21
82°
60°
22
82°
58°
23
81°
63°
24
81°
62°
25
82°
63°
26
81°
63°
27
86°
62°
28
86°
62°
29
85°
61°
30
86°
55°
31
80°
56°
1
80°
55°
2
79°
55°
3
80°
60°
4
80°
54°
5
84°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Middletown
Middletown's August 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 54° and 65°. The average high for August is 83° 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 Middletown. See also: September | October | November.