S
M
T
W
T
F
S
30
97°
67°
31
100°
70°
1
98°
73°
2
96°
72°
3
94°
74°
4
94°
72°
5
95°
72°
6
97°
72°
7
98°
72°
8
98°
71°
9
97°
72°
10
96°
72°
11
89°
67°
12
89°
64°
13
87°
64°
14
88°
63°
15
85°
67°
16
87°
66°
17
89°
66°
18
89°
65°
19
88°
66°
20
88°
66°
21
85°
65°
22
86°
65°
23
88°
64°
24
88°
63°
25
87°
63°
26
87°
62°
27
88°
63°
28
88°
62°
29
87°
61°
30
87°
62°
1
86°
62°
2
86°
61°
3
85°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Saint Matthews
Saint Matthews's September 2026 forecast shows daily high temperatures ranging from 85° to 98°, with overnight lows between 61° and 74°. The average high for September is 90° with an average low of 66°. 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 Saint Matthews. See also: October | November | December.