S
M
T
W
T
F
S
30
64°
52°
31
64°
53°
1
63°
52°
2
64°
51°
3
63°
48°
4
60°
48°
5
58°
47°
6
58°
48°
7
59°
47°
8
58°
46°
9
58°
47°
10
59°
46°
11
57°
46°
12
57°
47°
13
58°
46°
14
57°
46°
15
56°
49°
16
57°
48°
17
57°
46°
18
58°
47°
19
57°
45°
20
56°
45°
21
55°
46°
22
55°
44°
23
56°
44°
24
54°
45°
25
53°
44°
26
54°
42°
27
54°
43°
28
55°
43°
29
53°
44°
30
53°
47°
1
54°
48°
2
56°
48°
3
55°
46°
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 57° 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.
