S
M
T
W
T
F
S
30
88°
69°
31
89°
67°
1
85°
67°
2
85°
68°
3
86°
66°
4
85°
67°
5
88°
69°
6
89°
67°
7
88°
65°
8
84°
66°
9
83°
64°
10
85°
65°
11
85°
65°
12
86°
67°
13
85°
68°
14
82°
68°
15
Hist. Avg.
85°
65°
16
Hist. Avg.
85°
64°
17
Hist. Avg.
85°
64°
18
Hist. Avg.
84°
64°
19
Hist. Avg.
84°
64°
20
Hist. Avg.
84°
63°
21
Hist. Avg.
84°
63°
22
Hist. Avg.
83°
62°
23
Hist. Avg.
83°
62°
24
Hist. Avg.
83°
62°
25
Hist. Avg.
83°
61°
26
Hist. Avg.
82°
61°
27
Hist. Avg.
82°
60°
28
Hist. Avg.
82°
60°
29
Hist. Avg.
81°
60°
30
Hist. Avg.
81°
59°
1
Hist. Avg.
81°
59°
2
Hist. Avg.
80°
58°
3
Hist. Avg.
80°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Walterboro
Walterboro's September 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 64° and 69°. The average high for September is 86° with an average low of 67°. 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 Walterboro. See also: October | November | December.
