S
M
T
W
T
F
S
30
63°
52°
31
61°
53°
1
61°
53°
2
64°
52°
3
60°
52°
4
64°
51°
5
64°
48°
6
63°
49°
7
63°
47°
8
62°
46°
9
58°
48°
10
61°
51°
11
62°
48°
12
62°
48°
13
60°
51°
14
58°
48°
15
59°
46°
16
57°
45°
17
56°
47°
18
56°
48°
19
58°
43°
20
55°
45°
21
55°
45°
22
54°
44°
23
55°
44°
24
54°
45°
25
54°
44°
26
55°
45°
27
54°
44°
28
54°
44°
29
55°
45°
30
53°
48°
1
58°
47°
2
53°
44°
3
55°
42°
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 53° to 64°, with overnight lows between 42° and 53°. The average high for September is 58° with an average low of 47°. 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.
