S
M
T
W
T
F
S
30
96°
57°
31
90°
57°
1
68°
55°
2
62°
56°
3
67°
53°
4
71°
55°
5
78°
56°
6
79°
60°
7
81°
66°
8
88°
66°
9
90°
67°
10
86°
66°
11
94°
67°
12
88°
66°
13
89°
67°
14
91°
64°
15
94°
68°
16
88°
63°
17
85°
62°
18
87°
65°
19
86°
65°
20
84°
66°
21
85°
62°
22
90°
66°
23
87°
58°
24
80°
58°
25
78°
57°
26
80°
56°
27
79°
60°
28
78°
56°
29
81°
59°
30
80°
61°
1
77°
57°
2
78°
55°
3
79°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Minnesota
Minnesota's September 2026 forecast shows daily high temperatures ranging from 62° to 94°, with overnight lows between 53° and 68°. The average high for September is 82° with an average low of 61°. 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 Minnesota. See also: October | November | December.
