S
M
T
W
T
F
S
30
86°
64°
31
86°
65°
1
88°
66°
2
90°
66°
3
89°
68°
4
90°
68°
5
90°
64°
6
85°
63°
7
86°
67°
8
85°
67°
9
84°
66°
10
84°
66°
11
88°
65°
12
89°
66°
13
89°
66°
14
88°
65°
15
89°
66°
16
88°
65°
17
88°
65°
18
87°
64°
19
87°
61°
20
86°
58°
21
86°
62°
22
84°
63°
23
85°
62°
24
86°
58°
25
86°
57°
26
85°
60°
27
84°
61°
28
85°
58°
29
82°
59°
30
83°
58°
1
84°
59°
2
84°
59°
3
78°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mistletoe State Park
Mistletoe State Park's September 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 57° and 68°. The average high for September is 86° 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 Mistletoe State Park. See also: October | November | December.
