S
M
T
W
T
F
S
30
87°
67°
31
89°
67°
1
89°
66°
2
88°
68°
3
91°
67°
4
88°
66°
5
85°
62°
6
85°
62°
7
86°
63°
8
87°
66°
9
88°
65°
10
89°
66°
11
89°
66°
12
88°
65°
13
89°
65°
14
87°
64°
15
88°
64°
16
88°
64°
17
Hist. Avg.
85°
59°
18
Hist. Avg.
85°
58°
19
Hist. Avg.
85°
58°
20
Hist. Avg.
84°
58°
21
Hist. Avg.
84°
57°
22
Hist. Avg.
84°
56°
23
Hist. Avg.
84°
56°
24
Hist. Avg.
83°
56°
25
Hist. Avg.
83°
55°
26
Hist. Avg.
82°
54°
27
Hist. Avg.
82°
54°
28
Hist. Avg.
82°
54°
29
Hist. Avg.
82°
53°
30
Hist. Avg.
81°
52°
1
Hist. Avg.
81°
52°
2
Hist. Avg.
80°
52°
3
Hist. Avg.
80°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Collierville
Collierville's September 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 62° and 68°. The average high for September is 88° with an average low of 65°. 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 Collierville. See also: October | November | December.
