S
M
T
W
T
F
S
30
77°
54°
31
76°
53°
1
75°
51°
2
74°
48°
3
75°
51°
4
75°
50°
5
76°
50°
6
76°
51°
7
74°
46°
8
72°
44°
9
67°
43°
10
66°
52°
11
70°
45°
12
72°
51°
13
73°
50°
14
68°
52°
15
72°
51°
16
64°
47°
17
65°
46°
18
67°
39°
19
Hist. Avg.
69°
46°
20
Hist. Avg.
68°
45°
21
Hist. Avg.
68°
45°
22
Hist. Avg.
68°
44°
23
Hist. Avg.
67°
44°
24
Hist. Avg.
67°
44°
25
Hist. Avg.
66°
43°
26
Hist. Avg.
66°
43°
27
Hist. Avg.
65°
42°
28
Hist. Avg.
65°
42°
29
Hist. Avg.
64°
42°
30
Hist. Avg.
64°
41°
1
Hist. Avg.
63°
41°
2
Hist. Avg.
63°
40°
3
Hist. Avg.
62°
40°
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 64° to 77°, with overnight lows between 39° and 54°. The average high for September is 72° with an average low of 49°. 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.