S
M
T
W
T
F
S
30
88°
71°
31
91°
70°
1
96°
71°
2
96°
74°
3
97°
74°
4
97°
75°
5
97°
74°
6
95°
72°
7
80°
71°
8
85°
69°
9
90°
66°
10
92°
67°
11
94°
70°
12
81°
72°
13
90°
69°
14
92°
71°
15
82°
73°
16
87°
70°
17
89°
69°
18
94°
70°
19
88°
70°
20
86°
69°
21
90°
69°
22
79°
67°
23
73°
64°
24
76°
63°
25
74°
62°
26
75°
59°
27
75°
59°
28
76°
60°
29
75°
61°
30
75°
62°
1
73°
60°
2
74°
53°
3
75°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Keowee
Keowee's September 2026 forecast shows daily high temperatures ranging from 73° to 90°, with overnight lows between 53° and 70°. The average high for September is 78° with an average low of 63°. 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 Keowee. See also: October | November | December.
