S
M
T
W
T
F
S
30
102°
79°
31
86°
72°
1
95°
73°
2
99°
79°
3
97°
81°
4
99°
81°
5
99°
79°
6
100°
77°
7
102°
81°
8
102°
84°
9
104°
86°
10
104°
81°
11
102°
84°
12
97°
82°
13
100°
81°
14
102°
81°
15
97°
77°
16
91°
73°
17
88°
73°
18
99°
73°
19
99°
75°
20
99°
73°
21
99°
75°
22
97°
75°
23
93°
79°
24
84°
70°
25
90°
66°
26
95°
70°
27
97°
73°
28
82°
68°
29
77°
68°
30
79°
63°
1
90°
64°
2
92°
72°
3
94°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Florence
Florence's September 2026 forecast shows daily high temperatures ranging from 92° to 94°, with overnight lows between 72° and 72°. The average high for September is 93° with an average low of 72°. 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 Florence. See also: October | November | December.