S
M
T
W
T
F
S
30
77°
57°
31
70°
60°
1
70°
60°
2
71°
58°
3
70°
56°
4
73°
58°
5
74°
59°
6
76°
60°
7
76°
60°
8
75°
59°
9
77°
60°
10
76°
59°
11
77°
59°
12
76°
58°
13
74°
52°
14
66°
51°
15
69°
55°
16
72°
56°
17
72°
55°
18
74°
56°
19
74°
56°
20
73°
55°
21
74°
55°
22
73°
54°
23
73°
55°
24
74°
55°
25
74°
54°
26
72°
53°
27
71°
54°
28
70°
43°
29
68°
44°
30
61°
41°
1
60°
44°
2
65°
48°
3
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in High Cliff State Park
High Cliff State Park's September 2026 forecast shows daily high temperatures ranging from 60° to 77°, with overnight lows between 41° and 60°. The average high for September is 72° with an average low of 54°. 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 High Cliff State Park. See also: October | November | December.
