S
M
T
W
T
F
S
30
74°
54°
31
81°
38°
1
75°
57°
2
75°
55°
3
76°
50°
4
78°
46°
5
81°
48°
6
84°
48°
7
67°
49°
8
74°
36°
9
77°
38°
10
80°
41°
11
80°
58°
12
81°
42°
13
76°
50°
14
64°
43°
15
75°
35°
16
83°
42°
17
74°
54°
18
68°
54°
19
65°
49°
20
66°
40°
21
73°
44°
22
74°
48°
23
72°
45°
24
77°
46°
25
77°
48°
26
71°
47°
27
73°
46°
28
69°
44°
29
67°
41°
30
64°
43°
1
61°
40°
2
65°
36°
3
66°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Anthony
St. Anthony's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 36° and 48°. The average high for September is 70° with an average low of 43°. 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. Anthony. See also: October | November | December.