S
M
T
W
T
F
S
30
98°
66°
31
87°
61°
1
87°
61°
2
95°
61°
3
98°
69°
4
101°
61°
5
92°
67°
6
81°
68°
7
88°
69°
8
85°
58°
9
81°
53°
10
88°
61°
11
90°
52°
12
76°
52°
13
70°
52°
14
68°
47°
15
72°
54°
16
75°
53°
17
75°
51°
18
70°
48°
19
68°
49°
20
74°
48°
21
79°
55°
22
78°
56°
23
79°
55°
24
78°
54°
25
74°
54°
26
70°
53°
27
77°
54°
28
77°
53°
29
72°
50°
30
63°
47°
1
61°
46°
2
61°
40°
3
60°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Plankinton
Plankinton's September 2026 forecast shows daily high temperatures ranging from 60° to 90°, with overnight lows between 40° and 69°. The average high for September is 74° with an average low of 52°. 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 Plankinton. See also: October | November | December.
