S
M
T
W
T
F
S
30
76°
38°
31
74°
32°
1
69°
35°
2
75°
30°
3
72°
31°
4
68°
33°
5
68°
36°
6
74°
28°
7
73°
29°
8
66°
27°
9
67°
26°
10
66°
26°
11
66°
31°
12
69°
28°
13
71°
30°
14
72°
33°
15
72°
35°
16
76°
35°
17
72°
25°
18
63°
30°
19
64°
30°
20
71°
31°
21
72°
26°
22
68°
23°
23
61°
25°
24
63°
24°
25
71°
31°
26
62°
28°
27
66°
26°
28
Hist. Avg.
66°
33°
29
Hist. Avg.
66°
32°
30
Hist. Avg.
65°
32°
1
Hist. Avg.
65°
32°
2
Hist. Avg.
64°
32°
3
Hist. Avg.
64°
31°
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 61° to 76°, with overnight lows between 23° and 38°. The average high for September is 69° with an average low of 30°. 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.