S
M
T
W
T
F
S
30
90°
67°
31
85°
65°
1
83°
59°
2
87°
63°
3
93°
70°
4
86°
69°
5
84°
65°
6
75°
66°
7
82°
66°
8
90°
62°
9
81°
56°
10
86°
51°
11
90°
62°
12
73°
52°
13
71°
49°
14
64°
50°
15
71°
53°
16
74°
46°
17
72°
57°
18
62°
59°
19
61°
57°
20
67°
51°
21
57°
49°
22
63°
44°
23
64°
49°
24
65°
53°
25
69°
54°
26
70°
54°
27
70°
50°
28
69°
51°
29
69°
49°
30
70°
48°
1
71°
52°
2
66°
44°
3
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Redwood Falls
Redwood Falls's September 2026 forecast shows daily high temperatures ranging from 57° to 71°, with overnight lows between 44° and 54°. The average high for September is 67° 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 Redwood Falls. See also: October | November | December.
