S
M
T
W
T
F
S
30
72°
50°
31
77°
58°
1
73°
59°
2
76°
57°
3
72°
52°
4
71°
49°
5
70°
49°
6
70°
50°
7
72°
56°
8
71°
50°
9
68°
48°
10
69°
46°
11
69°
43°
12
66°
46°
13
68°
47°
14
67°
46°
15
66°
45°
16
67°
44°
17
67°
44°
18
68°
45°
19
65°
44°
20
65°
42°
21
64°
42°
22
66°
44°
23
69°
47°
24
70°
42°
25
72°
49°
26
74°
49°
27
71°
44°
28
64°
41°
29
64°
40°
30
65°
39°
1
61°
47°
2
70°
48°
3
71°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fort Plain
Fort Plain's September 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 38° and 59°. The average high for September is 69° with an average low of 47°. 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 Fort Plain. See also: October | November | December.
