S
M
T
W
T
F
S
30
71°
50°
31
70°
51°
1
70°
49°
2
71°
48°
3
71°
52°
4
75°
55°
5
72°
56°
6
71°
50°
7
74°
51°
8
71°
55°
9
70°
48°
10
70°
48°
11
71°
52°
12
72°
52°
13
72°
45°
14
69°
54°
15
74°
55°
16
77°
53°
17
74°
45°
18
72°
42°
19
65°
42°
20
64°
43°
21
65°
43°
22
71°
51°
23
73°
51°
24
72°
44°
25
72°
39°
26
66°
40°
27
62°
40°
28
60°
39°
29
61°
40°
30
63°
47°
1
61°
43°
2
Hist. Avg.
66°
43°
3
Hist. Avg.
65°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Ansgar
St. Ansgar's September 2026 forecast shows daily high temperatures ranging from 60° to 77°, with overnight lows between 39° and 56°. The average high for September is 69° with an average low of 48°. 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 St. Ansgar. See also: October | November | December.
