S
M
T
W
T
F
S
30
91°
72°
31
93°
70°
1
90°
67°
2
88°
70°
3
91°
69°
4
92°
69°
5
91°
70°
6
90°
70°
7
87°
69°
8
87°
69°
9
91°
65°
10
88°
64°
11
86°
65°
12
87°
64°
13
85°
63°
14
84°
62°
15
85°
63°
16
86°
63°
17
85°
62°
18
88°
67°
19
87°
66°
20
89°
65°
21
83°
60°
22
82°
60°
23
Hist. Avg.
86°
64°
24
Hist. Avg.
86°
63°
25
Hist. Avg.
86°
63°
26
Hist. Avg.
85°
63°
27
Hist. Avg.
85°
62°
28
Hist. Avg.
85°
62°
29
Hist. Avg.
84°
62°
30
Hist. Avg.
84°
61°
1
Hist. Avg.
84°
61°
2
Hist. Avg.
83°
60°
3
Hist. Avg.
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Florence
Florence's September 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 60° and 72°. 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 Florence. See also: October | November | December.