S
M
T
W
T
F
S
30
79°
58°
31
82°
61°
1
82°
61°
2
80°
60°
3
83°
53°
4
77°
52°
5
75°
54°
6
76°
59°
7
82°
58°
8
77°
56°
9
75°
57°
10
76°
58°
11
82°
59°
12
82°
58°
13
81°
58°
14
82°
57°
15
81°
57°
16
80°
56°
17
78°
49°
18
73°
48°
19
72°
46°
20
71°
46°
21
70°
47°
22
70°
49°
23
71°
47°
24
75°
47°
25
73°
53°
26
75°
53°
27
76°
52°
28
76°
52°
29
77°
50°
30
75°
48°
1
71°
49°
2
75°
51°
3
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Knightstown
Knightstown's September 2026 forecast shows daily high temperatures ranging from 70° to 83°, with overnight lows between 46° and 61°. The average high for September is 77° with an average low of 53°. 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 Knightstown. See also: October | November | December.
