S
M
T
W
T
F
S
31
83°
49°
1
80°
53°
2
72°
53°
3
56°
41°
4
49°
40°
5
54°
39°
6
57°
36°
7
64°
32°
8
72°
38°
9
75°
47°
10
76°
41°
11
72°
46°
12
74°
58°
13
80°
58°
14
80°
62°
15
82°
67°
16
82°
58°
17
72°
54°
18
64°
57°
19
64°
55°
20
71°
59°
21
74°
50°
22
76°
44°
23
81°
46°
24
80°
46°
25
74°
43°
26
74°
36°
27
72°
44°
28
82°
46°
29
90°
53°
30
77°
56°
1
83°
60°
2
83°
54°
3
87°
45°
4
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Itasca State Park
Itasca State Park's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Itasca State Park. See also: October | November | December.
