S
M
T
W
T
F
S
30
93°
64°
31
90°
64°
1
88°
69°
2
92°
70°
3
93°
69°
4
92°
68°
5
92°
68°
6
91°
67°
7
91°
66°
8
90°
65°
9
89°
65°
10
87°
64°
11
88°
65°
12
89°
65°
13
Hist. Avg.
86°
62°
14
Hist. Avg.
86°
62°
15
Hist. Avg.
86°
62°
16
Hist. Avg.
85°
61°
17
Hist. Avg.
85°
61°
18
Hist. Avg.
85°
60°
19
Hist. Avg.
84°
60°
20
Hist. Avg.
84°
59°
21
Hist. Avg.
84°
59°
22
Hist. Avg.
83°
58°
23
Hist. Avg.
83°
58°
24
Hist. Avg.
83°
57°
25
Hist. Avg.
82°
57°
26
Hist. Avg.
82°
56°
27
Hist. Avg.
82°
56°
28
Hist. Avg.
81°
55°
29
Hist. Avg.
81°
55°
30
Hist. Avg.
80°
54°
1
Hist. Avg.
80°
54°
2
Hist. Avg.
80°
53°
3
Hist. Avg.
79°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Memphis STC
Memphis STC's September 2026 forecast shows daily high temperatures ranging from 87° to 93°, with overnight lows between 64° and 70°. 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 Memphis STC. See also: October | November | December.