S
M
T
W
T
F
S
30
91°
71°
31
91°
70°
1
90°
70°
2
86°
69°
3
87°
70°
4
86°
70°
5
87°
69°
6
89°
70°
7
87°
69°
8
84°
65°
9
84°
64°
10
83°
64°
11
83°
67°
12
86°
67°
13
87°
68°
14
87°
63°
15
86°
62°
16
82°
61°
17
81°
62°
18
84°
63°
19
86°
62°
20
86°
61°
21
85°
65°
22
85°
65°
23
84°
63°
24
83°
60°
25
82°
59°
26
82°
59°
27
81°
63°
28
84°
63°
29
84°
62°
30
85°
62°
1
83°
61°
2
83°
63°
3
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Santee State Park
Santee State Park's September 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 59° and 71°. The average high for September is 85° with an average low of 65°. 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 Santee State Park. See also: October | November | December.
