S
M
T
W
T
F
S
30
89°
64°
31
91°
66°
1
93°
65°
2
93°
65°
3
92°
66°
4
94°
69°
5
93°
68°
6
92°
68°
7
92°
67°
8
91°
68°
9
90°
66°
10
90°
66°
11
89°
65°
12
90°
66°
13
90°
65°
14
89°
65°
15
89°
64°
16
88°
64°
17
85°
63°
18
84°
63°
19
87°
61°
20
80°
62°
21
82°
62°
22
82°
61°
23
83°
62°
24
86°
61°
25
86°
60°
26
87°
60°
27
86°
59°
28
85°
59°
29
84°
58°
30
83°
57°
1
84°
58°
2
85°
58°
3
86°
59°
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 80° to 94°, with overnight lows between 57° and 69°. The average high for September is 88° 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 Saint Matthews. See also: October | November | December.