S
M
T
W
T
F
S
30
95°
61°
31
97°
67°
1
99°
71°
2
99°
72°
3
100°
73°
4
101°
74°
5
101°
72°
6
98°
73°
7
95°
74°
8
94°
73°
9
93°
72°
10
95°
72°
11
91°
66°
12
86°
63°
13
87°
65°
14
82°
62°
15
80°
66°
16
80°
66°
17
81°
65°
18
85°
66°
19
86°
66°
20
85°
65°
21
84°
65°
22
85°
64°
23
85°
64°
24
84°
63°
25
85°
64°
26
84°
63°
27
85°
62°
28
84°
63°
29
83°
62°
30
84°
61°
1
83°
61°
2
83°
60°
3
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Poplar Bluff
Poplar Bluff's September 2026 forecast shows daily high temperatures ranging from 80° to 101°, with overnight lows between 60° and 74°. The average high for September is 88° 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 Poplar Bluff. See also: October | November | December.
