S
M
T
W
T
F
S
31
77°
57°
1
79°
55°
2
70°
63°
3
58°
45°
4
55°
45°
5
59°
41°
6
61°
39°
7
64°
37°
8
75°
52°
9
77°
55°
10
75°
54°
11
75°
55°
12
73°
64°
13
79°
63°
14
90°
66°
15
84°
66°
16
84°
61°
17
77°
59°
18
73°
63°
19
68°
61°
20
70°
61°
21
73°
57°
22
77°
54°
23
82°
55°
24
79°
57°
25
77°
54°
26
81°
54°
27
73°
46°
28
81°
52°
29
90°
61°
30
79°
63°
1
82°
64°
2
82°
59°
3
88°
55°
4
84°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fergus Falls
Fergus Falls's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Fergus Falls. See also: October | November | December.
