S
M
T
W
T
F
S
30
82°
64°
31
86°
68°
1
89°
68°
2
88°
67°
3
88°
64°
4
84°
60°
5
81°
62°
6
84°
67°
7
87°
67°
8
85°
66°
9
80°
65°
10
83°
66°
11
86°
65°
12
86°
65°
13
85°
66°
14
85°
65°
15
84°
65°
16
85°
64°
17
84°
59°
18
77°
56°
19
76°
54°
20
77°
54°
21
75°
53°
22
74°
54°
23
76°
54°
24
80°
55°
25
79°
60°
26
81°
60°
27
80°
59°
28
80°
58°
29
79°
57°
30
79°
57°
1
76°
55°
2
78°
58°
3
72°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Matthews
St. Matthews's September 2026 forecast shows daily high temperatures ranging from 72° to 89°, with overnight lows between 51° and 68°. The average high for September is 81° with an average low of 61°. 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 St. Matthews. See also: October | November | December.
