S
M
T
W
T
F
S
30
89°
70°
31
115°
72°
1
N/A
2
98°
72°
3
96°
72°
4
97°
73°
5
95°
71°
6
90°
69°
7
86°
66°
8
87°
66°
9
89°
65°
10
93°
66°
11
90°
65°
12
86°
62°
13
84°
61°
14
85°
62°
15
84°
65°
16
79°
65°
17
78°
64°
18
81°
64°
19
78°
63°
20
77°
60°
21
77°
57°
22
78°
59°
23
78°
59°
24
83°
63°
25
82°
62°
26
76°
61°
27
74°
62°
28
74°
62°
29
75°
61°
30
77°
60°
1
73°
59°
2
73°
59°
3
74°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Williamston
Williamston's September 2026 forecast shows daily high temperatures ranging from 73° to 98°, with overnight lows between 57° and 73°. The average high for September is 83° with an average low of 64°. 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 Williamston. See also: October | November | December.
