S
M
T
W
T
F
S
30
63°
50°
31
63°
52°
1
59°
51°
2
59°
50°
3
58°
49°
4
58°
48°
5
59°
50°
6
58°
52°
7
58°
52°
8
59°
51°
9
58°
51°
10
58°
50°
11
59°
51°
12
60°
50°
13
62°
51°
14
60°
50°
15
57°
51°
16
59°
49°
17
58°
50°
18
61°
47°
19
60°
49°
20
59°
49°
21
56°
48°
22
55°
48°
23
58°
47°
24
57°
48°
25
57°
48°
26
59°
50°
27
59°
48°
28
58°
47°
29
57°
46°
30
53°
44°
1
56°
44°
2
55°
42°
3
54°
44°
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 63°, with overnight lows between 42° and 52°. 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.
