S
M
T
W
T
F
S
30
83°
61°
31
84°
63°
1
82°
62°
2
78°
58°
3
78°
57°
4
77°
55°
5
78°
56°
6
81°
60°
7
82°
58°
8
82°
58°
9
81°
56°
10
79°
55°
11
82°
58°
12
82°
61°
13
83°
61°
14
82°
60°
15
82°
59°
16
81°
60°
17
82°
58°
18
80°
58°
19
79°
57°
20
80°
57°
21
78°
56°
22
79°
51°
23
74°
55°
24
75°
56°
25
72°
56°
26
Hist. Avg.
71°
50°
27
Hist. Avg.
71°
50°
28
Hist. Avg.
70°
50°
29
Hist. Avg.
70°
49°
30
Hist. Avg.
70°
49°
1
Hist. Avg.
70°
49°
2
Hist. Avg.
69°
48°
3
Hist. Avg.
69°
48°
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 51° and 63°. The average high for September is 80° with an average low of 58°. 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.
