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