S
M
T
W
T
F
S
30
85°
64°
31
79°
66°
1
78°
69°
2
79°
70°
3
84°
70°
4
84°
69°
5
83°
69°
6
84°
67°
7
84°
68°
8
81°
65°
9
79°
62°
10
77°
61°
11
76°
63°
12
79°
62°
13
80°
67°
14
82°
64°
15
78°
60°
16
77°
62°
17
76°
61°
18
78°
65°
19
79°
60°
20
80°
64°
21
78°
64°
22
80°
60°
23
76°
58°
24
74°
58°
25
74°
59°
26
73°
63°
27
78°
62°
28
78°
63°
29
77°
57°
30
77°
57°
1
71°
62°
2
77°
62°
3
77°
57°
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 85°, with overnight lows between 57° and 70°. The average high for September is 79° with an average low of 63°. 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.
