S
M
T
W
T
F
S
30
79°
60°
31
81°
64°
1
83°
64°
2
84°
63°
3
84°
61°
4
83°
64°
5
83°
63°
6
82°
62°
7
79°
62°
8
76°
61°
9
80°
56°
10
79°
55°
11
75°
62°
12
79°
59°
13
82°
61°
14
77°
60°
15
80°
60°
16
79°
61°
17
Hist. Avg.
77°
58°
18
Hist. Avg.
76°
57°
19
Hist. Avg.
76°
57°
20
Hist. Avg.
76°
56°
21
Hist. Avg.
75°
56°
22
Hist. Avg.
75°
56°
23
Hist. Avg.
74°
55°
24
Hist. Avg.
74°
55°
25
Hist. Avg.
74°
54°
26
Hist. Avg.
73°
54°
27
Hist. Avg.
73°
54°
28
Hist. Avg.
72°
53°
29
Hist. Avg.
72°
53°
30
Hist. Avg.
72°
52°
1
Hist. Avg.
71°
52°
2
Hist. Avg.
71°
52°
3
Hist. Avg.
70°
51°
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 75° to 84°, with overnight lows between 55° and 64°. The average high for September is 80° with an average low of 61°. 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.