S
M
T
W
T
F
S
30
91°
56°
31
90°
53°
1
91°
54°
2
88°
53°
3
87°
52°
4
88°
51°
5
86°
51°
6
86°
54°
7
87°
54°
8
88°
53°
9
87°
52°
10
87°
52°
11
88°
54°
12
86°
58°
13
88°
59°
14
92°
59°
15
93°
58°
16
92°
57°
17
91°
59°
18
91°
59°
19
92°
58°
20
93°
59°
21
90°
56°
22
89°
55°
23
89°
54°
24
87°
55°
25
89°
57°
26
86°
53°
27
83°
57°
28
80°
49°
29
80°
50°
30
Hist. Avg.
85°
54°
1
Hist. Avg.
85°
54°
2
Hist. Avg.
85°
54°
3
Hist. Avg.
84°
53°
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 80° to 93°, with overnight lows between 49° and 59°. The average high for September is 88° with an average low of 55°. 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.
