S
M
T
W
T
F
S
30
100°
74°
31
100°
73°
1
100°
74°
2
97°
73°
3
92°
74°
4
97°
72°
5
98°
74°
6
99°
72°
7
100°
75°
8
100°
75°
9
98°
74°
10
95°
76°
11
94°
74°
12
98°
75°
13
98°
76°
14
97°
78°
15
97°
78°
16
98°
74°
17
98°
74°
18
97°
71°
19
94°
66°
20
94°
69°
21
93°
74°
22
98°
71°
23
N/A
24
92°
60°
25
91°
65°
26
91°
71°
27
91°
71°
28
90°
73°
29
89°
71°
30
79°
62°
1
81°
60°
2
78°
60°
3
79°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Winnsboro
Winnsboro's September 2026 forecast shows daily high temperatures ranging from 78° to 92°, with overnight lows between 60° and 73°. The average high for September is 86° 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.
