S
M
T
W
T
F
S
30
88°
65°
31
N/A
1
88°
64°
2
80°
65°
3
87°
68°
4
91°
67°
5
87°
66°
6
89°
64°
7
78°
66°
8
77°
61°
9
80°
59°
10
77°
56°
11
74°
56°
12
73°
55°
13
74°
56°
14
73°
53°
15
77°
58°
16
74°
54°
17
74°
58°
18
76°
58°
19
73°
55°
20
74°
56°
21
76°
58°
22
76°
58°
23
75°
57°
24
76°
58°
25
75°
56°
26
74°
56°
27
75°
55°
28
75°
55°
29
74°
54°
30
74°
56°
1
73°
55°
2
74°
54°
3
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in St. Louis Park
St. Louis Park's September 2026 forecast shows daily high temperatures ranging from 72° to 91°, with overnight lows between 53° and 68°. The average high for September is 77° 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. Louis Park. See also: October | November | December.
