S
M
T
W
T
F
S
30
76°
62°
31
77°
61°
1
81°
58°
2
80°
52°
3
71°
57°
4
73°
60°
5
71°
54°
6
80°
50°
7
72°
49°
8
70°
50°
9
69°
56°
10
70°
58°
11
72°
57°
12
76°
54°
13
77°
48°
14
68°
47°
15
66°
46°
16
66°
47°
17
67°
48°
18
67°
46°
19
73°
43°
20
64°
45°
21
65°
54°
22
68°
46°
23
74°
52°
24
72°
53°
25
72°
53°
26
71°
52°
27
72°
50°
28
72°
43°
29
66°
47°
30
59°
48°
1
66°
47°
2
68°
50°
3
Hist. Avg.
63°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Waconia
Waconia's September 2026 forecast shows daily high temperatures ranging from 59° to 81°, with overnight lows between 43° and 62°. The average high for September is 71° with an average low of 51°. 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 Waconia. See also: October | November | December.
