S
M
T
W
T
F
S
30
83°
56°
31
83°
53°
1
85°
56°
2
88°
55°
3
89°
59°
4
91°
57°
5
90°
52°
6
90°
58°
7
91°
56°
8
84°
57°
9
81°
53°
10
83°
50°
11
87°
51°
12
78°
53°
13
89°
50°
14
87°
64°
15
73°
54°
16
82°
50°
17
81°
57°
18
82°
57°
19
78°
51°
20
79°
43°
21
72°
52°
22
80°
55°
23
69°
54°
24
N/A
25
66°
48°
26
79°
48°
27
82°
47°
28
N/A
29
66°
51°
30
57°
51°
1
64°
46°
2
68°
43°
3
81°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cascade
Cascade's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Cascade. See also: October | November | December.
