S
M
T
W
T
F
S
30
63°
53°
31
61°
53°
1
61°
52°
2
60°
53°
3
62°
52°
4
63°
52°
5
63°
51°
6
59°
52°
7
58°
52°
8
59°
51°
9
58°
51°
10
58°
50°
11
57°
49°
12
57°
48°
13
58°
46°
14
57°
45°
15
56°
46°
16
60°
51°
17
58°
50°
18
60°
50°
19
57°
49°
20
57°
48°
21
59°
45°
22
59°
44°
23
57°
47°
24
56°
46°
25
57°
44°
26
55°
43°
27
54°
42°
28
57°
46°
29
54°
44°
30
53°
43°
1
53°
42°
2
52°
44°
3
52°
48°
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 63°, with overnight lows between 42° and 53°. The average high for September is 58° with an average low of 48°. 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.
