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
99°
72°
7
88°
72°
8
90°
72°
9
93°
68°
10
93°
66°
11
95°
68°
12
88°
73°
13
95°
70°
14
97°
68°
15
97°
70°
16
95°
73°
17
97°
68°
18
99°
72°
19
97°
72°
20
95°
70°
21
95°
72°
22
91°
68°
23
86°
66°
24
82°
70°
25
81°
61°
26
84°
54°
27
N/A
28
84°
48°
29
88°
50°
30
90°
54°
1
87°
66°
2
88°
67°
3
81°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Tupelo
Tupelo's September 2026 forecast shows daily high temperatures ranging from 81° to 88°, with overnight lows between 66° and 70°. The average high for September is 85° with an average low of 68°. 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.