S
M
T
W
T
F
S
30
91°
63°
31
90°
66°
1
96°
71°
2
93°
70°
3
95°
70°
4
93°
68°
5
86°
68°
6
79°
55°
7
82°
54°
8
86°
59°
9
90°
68°
10
81°
68°
11
81°
63°
12
81°
64°
13
88°
63°
14
73°
52°
15
88°
68°
16
90°
69°
17
86°
68°
18
81°
60°
19
86°
66°
20
84°
64°
21
81°
62°
22
74°
56°
23
72°
53°
24
71°
52°
25
72°
53°
26
73°
53°
27
72°
52°
28
75°
49°
29
77°
55°
30
77°
55°
1
76°
54°
2
76°
53°
3
75°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Frankfort
Frankfort's September 2026 forecast shows daily high temperatures ranging from 71° to 90°, with overnight lows between 49° and 69°. The average high for September is 78° with an average low of 58°. 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 Frankfort. See also: October | November | December.
