S
M
T
W
T
F
S
30
65°
59°
31
59°
52°
1
58°
49°
2
64°
47°
3
71°
47°
4
76°
50°
5
69°
53°
6
63°
52°
7
63°
57°
8
64°
56°
9
61°
53°
10
62°
51°
11
60°
48°
12
57°
48°
13
58°
49°
14
57°
51°
15
61°
51°
16
58°
50°
17
57°
50°
18
56°
49°
19
55°
49°
20
55°
46°
21
54°
44°
22
54°
44°
23
55°
46°
24
55°
49°
25
56°
46°
26
55°
46°
27
54°
45°
28
59°
48°
29
57°
49°
30
58°
48°
1
56°
48°
2
56°
49°
3
55°
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 54° to 76°, with overnight lows between 44° and 57°. 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.
