S
M
T
W
T
F
S
30
63°
51°
31
64°
48°
1
64°
52°
2
63°
50°
3
59°
48°
4
59°
48°
5
58°
50°
6
59°
48°
7
59°
48°
8
58°
47°
9
57°
47°
10
57°
48°
11
58°
47°
12
56°
46°
13
56°
46°
14
57°
45°
15
58°
46°
16
57°
44°
17
57°
50°
18
58°
50°
19
56°
48°
20
57°
46°
21
56°
45°
22
56°
45°
23
59°
46°
24
60°
48°
25
57°
44°
26
56°
48°
27
57°
47°
28
56°
48°
29
58°
46°
30
54°
45°
1
Hist. Avg.
56°
43°
2
Hist. Avg.
56°
43°
3
Hist. Avg.
56°
43°
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 64°, with overnight lows between 44° and 52°. The average high for September is 58° with an average low of 47°. 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.
