S
M
T
W
T
F
S
30
81°
61°
31
81°
62°
1
82°
64°
2
82°
64°
3
83°
56°
4
82°
54°
5
80°
53°
6
77°
55°
7
79°
59°
8
79°
53°
9
80°
54°
10
84°
57°
11
83°
52°
12
79°
52°
13
78°
51°
14
78°
51°
15
81°
54°
16
81°
55°
17
82°
56°
18
82°
57°
19
75°
47°
20
72°
45°
21
Hist. Avg.
78°
52°
22
Hist. Avg.
77°
51°
23
Hist. Avg.
77°
51°
24
Hist. Avg.
76°
50°
25
Hist. Avg.
76°
50°
26
Hist. Avg.
75°
50°
27
Hist. Avg.
75°
49°
28
Hist. Avg.
74°
49°
29
Hist. Avg.
74°
48°
30
Hist. Avg.
74°
48°
1
Hist. Avg.
73°
47°
2
Hist. Avg.
72°
47°
3
Hist. Avg.
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in St. Paul
St. Paul's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 45° and 64°. The average high for September is 80° with an average low of 55°. 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.
