S
M
T
W
T
F
S
30
91°
72°
31
95°
70°
1
97°
72°
2
99°
72°
3
99°
73°
4
99°
73°
5
100°
75°
6
94°
69°
7
88°
70°
8
88°
70°
9
88°
69°
10
85°
69°
11
87°
67°
12
88°
70°
13
89°
69°
14
87°
65°
15
87°
63°
16
89°
65°
17
87°
64°
18
86°
62°
19
82°
57°
20
78°
63°
21
87°
63°
22
84°
62°
23
85°
63°
24
85°
63°
25
84°
62°
26
85°
62°
27
85°
61°
28
84°
62°
29
84°
62°
30
83°
61°
1
84°
60°
2
81°
54°
3
72°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tupelo
Tupelo's September 2026 forecast shows daily high temperatures ranging from 72° to 94°, with overnight lows between 50° and 70°. The average high for September is 85° 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 Tupelo. See also: October | November | December.