S
M
T
W
T
F
S
30
86°
72°
31
92°
70°
1
94°
73°
2
97°
74°
3
95°
73°
4
95°
72°
5
98°
72°
6
92°
69°
7
88°
69°
8
89°
66°
9
90°
69°
10
90°
73°
11
90°
71°
12
88°
70°
13
86°
71°
14
91°
70°
15
90°
70°
16
90°
66°
17
89°
67°
18
86°
64°
19
83°
62°
20
81°
59°
21
83°
61°
22
83°
60°
23
85°
64°
24
85°
64°
25
84°
61°
26
81°
58°
27
82°
61°
28
85°
62°
29
85°
63°
30
84°
62°
1
82°
62°
2
84°
61°
3
84°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Timmonsville
Timmonsville's September 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 58° and 73°. The average high for September is 86° 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 Timmonsville. See also: October | November | December.
