S
M
T
W
T
F
S
30
68°
55°
31
66°
52°
1
66°
52°
2
63°
55°
3
66°
54°
4
63°
54°
5
63°
50°
6
70°
50°
7
64°
54°
8
59°
52°
9
61°
46°
10
61°
45°
11
62°
49°
12
65°
56°
13
67°
56°
14
70°
55°
15
61°
49°
16
58°
51°
17
57°
49°
18
58°
51°
19
59°
50°
20
61°
50°
21
58°
51°
22
59°
49°
23
60°
51°
24
61°
50°
25
57°
49°
26
57°
48°
27
59°
50°
28
59°
45°
29
55°
44°
30
55°
47°
1
56°
49°
2
59°
50°
3
59°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Middlestown
Middlestown's September 2026 forecast shows daily high temperatures ranging from 55° to 70°, with overnight lows between 44° and 56°. The average high for September is 60° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Middlestown. See also: October | November | December.
