S
M
T
W
T
F
S
30
79°
56°
31
80°
55°
1
84°
52°
2
79°
52°
3
76°
51°
4
76°
51°
5
77°
57°
6
81°
63°
7
85°
59°
8
87°
50°
9
80°
52°
10
77°
55°
11
79°
62°
12
83°
53°
13
83°
47°
14
76°
52°
15
76°
59°
16
81°
56°
17
85°
48°
18
76°
49°
19
74°
54°
20
82°
56°
21
80°
57°
22
84°
57°
23
83°
56°
24
82°
56°
25
82°
55°
26
81°
56°
27
82°
55°
28
83°
55°
29
82°
54°
30
82°
55°
1
80°
44°
2
82°
42°
3
69°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Paul
St. Paul's September 2026 forecast shows daily high temperatures ranging from 69° to 87°, with overnight lows between 41° and 63°. The average high for September is 80° 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 St. Paul. See also: October | November | December.
