S
M
T
W
T
F
S
30
81°
57°
31
78°
56°
1
77°
61°
2
77°
54°
3
78°
51°
4
76°
60°
5
76°
62°
6
84°
61°
7
85°
59°
8
84°
53°
9
77°
56°
10
75°
58°
11
74°
56°
12
74°
59°
13
81°
58°
14
84°
52°
15
Hist. Avg.
77°
53°
16
Hist. Avg.
77°
52°
17
Hist. Avg.
77°
52°
18
Hist. Avg.
76°
52°
19
Hist. Avg.
76°
51°
20
Hist. Avg.
76°
51°
21
Hist. Avg.
75°
50°
22
Hist. Avg.
75°
50°
23
Hist. Avg.
74°
50°
24
Hist. Avg.
74°
49°
25
Hist. Avg.
74°
49°
26
Hist. Avg.
73°
48°
27
Hist. Avg.
73°
48°
28
Hist. Avg.
72°
48°
29
Hist. Avg.
72°
47°
30
Hist. Avg.
71°
47°
1
Hist. Avg.
71°
46°
2
Hist. Avg.
70°
46°
3
Hist. Avg.
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cedar Falls
Cedar Falls's September 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 51° and 62°. The average high for September is 79° with an average low of 57°. 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 Cedar Falls. See also: October | November | December.
