S
M
T
W
T
F
S
30
88°
74°
31
88°
73°
1
89°
74°
2
88°
75°
3
88°
74°
4
89°
75°
5
88°
74°
6
87°
74°
7
87°
73°
8
88°
73°
9
87°
74°
10
88°
72°
11
91°
72°
12
92°
70°
13
90°
70°
14
89°
72°
15
91°
71°
16
90°
72°
17
90°
71°
18
91°
71°
19
89°
72°
20
89°
72°
21
90°
70°
22
88°
70°
23
87°
71°
24
87°
72°
25
88°
72°
26
88°
71°
27
87°
70°
28
88°
68°
29
89°
68°
30
90°
70°
1
88°
70°
2
86°
69°
3
86°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bartow
Bartow's September 2026 forecast shows daily high temperatures ranging from 86° to 92°, with overnight lows between 68° and 75°. The average high for September is 89° 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 Bartow. See also: October | November | December.
