S
M
T
W
T
F
S
30
104°
75°
31
103°
72°
1
104°
76°
2
102°
75°
3
95°
73°
4
102°
73°
5
104°
75°
6
105°
76°
7
105°
74°
8
106°
78°
9
104°
76°
10
89°
72°
11
96°
78°
12
100°
77°
13
99°
73°
14
98°
71°
15
89°
64°
16
86°
65°
17
90°
63°
18
85°
61°
19
82°
60°
20
80°
61°
21
83°
60°
22
88°
66°
23
88°
66°
24
86°
65°
25
80°
66°
26
82°
65°
27
84°
65°
28
85°
64°
29
81°
64°
30
82°
58°
1
74°
52°
2
72°
51°
3
71°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Horntown
Horntown's September 2026 forecast shows daily high temperatures ranging from 71° to 106°, with overnight lows between 50° and 78°. The average high for September is 87° with an average low of 65°. 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 Horntown. See also: October | November | December.
