S
M
T
W
T
F
S
30
96°
69°
31
95°
71°
1
94°
71°
2
92°
67°
3
90°
65°
4
88°
65°
5
88°
69°
6
89°
68°
7
89°
69°
8
92°
70°
9
94°
70°
10
89°
69°
11
91°
68°
12
90°
69°
13
93°
65°
14
93°
62°
15
87°
62°
16
86°
63°
17
87°
62°
18
88°
64°
19
90°
66°
20
91°
67°
21
91°
67°
22
87°
66°
23
88°
66°
24
85°
65°
25
85°
65°
26
88°
64°
27
89°
64°
28
89°
65°
29
88°
64°
30
89°
64°
1
89°
63°
2
88°
64°
3
89°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Winnsboro
Winnsboro's September 2026 forecast shows daily high temperatures ranging from 85° to 96°, with overnight lows between 57° and 71°. The average high for September is 90° 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 Winnsboro. See also: October | November | December.
