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