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