S
M
T
W
T
F
S
30
87°
67°
31
87°
65°
1
85°
64°
2
87°
65°
3
88°
70°
4
91°
69°
5
81°
70°
6
72°
64°
7
78°
64°
8
82°
67°
9
82°
58°
10
81°
53°
11
84°
59°
12
73°
54°
13
71°
50°
14
69°
60°
15
72°
49°
16
69°
59°
17
72°
60°
18
77°
64°
19
70°
56°
20
67°
54°
21
70°
48°
22
70°
52°
23
71°
52°
24
69°
53°
25
72°
54°
26
76°
52°
27
75°
54°
28
69°
53°
29
68°
51°
30
70°
47°
1
71°
50°
2
67°
50°
3
70°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Blue Earth
Blue Earth's September 2026 forecast shows daily high temperatures ranging from 67° to 77°, with overnight lows between 47° and 64°. The average high for September is 71° with an average low of 53°. 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 Blue Earth. See also: October | November | December.
