S
M
T
W
T
F
S
31
75°
54°
1
77°
61°
2
73°
57°
3
63°
45°
4
66°
37°
5
57°
43°
6
61°
39°
7
64°
37°
8
79°
50°
9
70°
61°
10
73°
57°
11
79°
55°
12
81°
63°
13
88°
63°
14
88°
64°
15
86°
66°
16
91°
64°
17
79°
63°
18
77°
61°
19
72°
61°
20
72°
61°
21
79°
57°
22
73°
57°
23
77°
52°
24
75°
52°
25
82°
48°
26
84°
50°
27
73°
48°
28
81°
45°
29
88°
52°
30
82°
61°
1
84°
61°
2
88°
61°
3
90°
57°
4
91°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Ulm
New Ulm'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 New Ulm. See also: October | November | December.
