S
M
T
W
T
F
S
31
71°
63°
1
72°
61°
2
76°
60°
3
77°
48°
4
72°
46°
5
71°
46°
6
74°
41°
7
80°
44°
8
80°
61°
9
79°
59°
10
85°
58°
11
87°
59°
12
97°
65°
13
96°
67°
14
81°
60°
15
86°
54°
16
90°
61°
17
75°
59°
18
75°
56°
19
68°
50°
20
78°
50°
21
84°
58°
22
90°
58°
23
72°
57°
24
82°
54°
25
85°
53°
26
85°
54°
27
81°
50°
28
89°
48°
29
87°
56°
30
78°
63°
1
83°
61°
2
88°
55°
3
89°
61°
4
88°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Paul
St. Paul'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 St. Paul. See also: October | November | December.
