S
M
T
W
T
F
S
30
72°
49°
31
72°
56°
1
73°
49°
2
76°
53°
3
73°
50°
4
69°
47°
5
69°
49°
6
70°
53°
7
68°
48°
8
74°
55°
9
74°
47°
10
73°
46°
11
72°
47°
12
74°
48°
13
74°
52°
14
76°
53°
15
75°
54°
16
77°
55°
17
75°
54°
18
75°
46°
19
67°
43°
20
Hist. Avg.
69°
47°
21
Hist. Avg.
69°
47°
22
Hist. Avg.
68°
46°
23
Hist. Avg.
68°
46°
24
Hist. Avg.
68°
46°
25
Hist. Avg.
67°
45°
26
Hist. Avg.
66°
44°
27
Hist. Avg.
66°
44°
28
Hist. Avg.
66°
44°
29
Hist. Avg.
65°
43°
30
Hist. Avg.
65°
43°
1
Hist. Avg.
64°
42°
2
Hist. Avg.
64°
42°
3
Hist. Avg.
63°
41°
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 67° to 77°, with overnight lows between 43° and 56°. The average high for September is 73° with an average low of 50°. 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.
