S
M
T
W
T
F
S
30
65°
54°
31
65°
54°
1
64°
53°
2
60°
46°
3
61°
52°
4
62°
52°
5
62°
53°
6
63°
53°
7
58°
52°
8
58°
51°
9
59°
50°
10
58°
46°
11
57°
48°
12
58°
46°
13
60°
46°
14
59°
48°
15
60°
50°
16
56°
47°
17
58°
45°
18
56°
49°
19
Hist. Avg.
59°
46°
20
Hist. Avg.
59°
45°
21
Hist. Avg.
59°
45°
22
Hist. Avg.
58°
45°
23
Hist. Avg.
58°
45°
24
Hist. Avg.
58°
45°
25
Hist. Avg.
58°
44°
26
Hist. Avg.
58°
44°
27
Hist. Avg.
57°
44°
28
Hist. Avg.
57°
44°
29
Hist. Avg.
57°
44°
30
Hist. Avg.
57°
44°
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
*Temporarily Unavailable
September Weather in Waterfall
Waterfall's September 2026 forecast shows daily high temperatures ranging from 56° to 65°, with overnight lows between 45° and 54°. The average high for September is 60° 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.
