S
M
T
W
T
F
S
30
84°
68°
31
84°
63°
1
N/A
2
83°
66°
3
85°
66°
4
90°
70°
5
89°
67°
6
86°
64°
7
77°
64°
8
79°
59°
9
75°
56°
10
72°
56°
11
74°
52°
12
71°
52°
13
66°
53°
14
69°
50°
15
71°
49°
16
73°
55°
17
75°
57°
18
76°
55°
19
75°
54°
20
71°
53°
21
66°
53°
22
69°
52°
23
73°
55°
24
73°
53°
25
71°
47°
26
60°
44°
27
62°
41°
28
58°
44°
29
70°
43°
30
58°
44°
1
64°
48°
2
57°
44°
3
58°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Fergus Falls
Fergus Falls's September 2026 forecast shows daily high temperatures ranging from 57° to 90°, with overnight lows between 41° and 70°. The average high for September is 72° with an average low of 53°. 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.
