S
M
T
W
T
F
S
30
61°
53°
31
64°
52°
1
62°
51°
2
63°
51°
3
64°
52°
4
64°
53°
5
62°
53°
6
61°
52°
7
60°
52°
8
61°
51°
9
59°
52°
10
58°
51°
11
58°
51°
12
57°
50°
13
58°
49°
14
57°
50°
15
58°
49°
16
56°
50°
17
56°
50°
18
56°
48°
19
57°
48°
20
57°
47°
21
58°
49°
22
58°
48°
23
55°
46°
24
54°
48°
25
54°
47°
26
57°
47°
27
57°
46°
28
56°
43°
29
54°
42°
30
53°
44°
1
54°
45°
2
53°
42°
3
52°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Waterfall
Waterfall's September 2026 forecast shows daily high temperatures ranging from 52° to 64°, with overnight lows between 42° and 53°. The average high for September is 58° with an average low of 49°. 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 Waterfall. See also: October | November | December.
