S
M
T
W
T
F
S
30
84°
62°
31
83°
60°
1
81°
61°
2
82°
57°
3
78°
58°
4
78°
61°
5
84°
59°
6
82°
53°
7
Hist. Avg.
77°
54°
8
Hist. Avg.
77°
53°
9
Hist. Avg.
77°
53°
10
Hist. Avg.
76°
52°
11
Hist. Avg.
76°
52°
12
Hist. Avg.
76°
51°
13
Hist. Avg.
75°
51°
14
Hist. Avg.
75°
50°
15
Hist. Avg.
74°
50°
16
Hist. Avg.
74°
49°
17
Hist. Avg.
74°
49°
18
Hist. Avg.
73°
48°
19
Hist. Avg.
73°
48°
20
Hist. Avg.
72°
47°
21
Hist. Avg.
72°
47°
22
Hist. Avg.
72°
46°
23
Hist. Avg.
71°
46°
24
Hist. Avg.
71°
45°
25
Hist. Avg.
70°
45°
26
Hist. Avg.
70°
44°
27
Hist. Avg.
70°
44°
28
Hist. Avg.
69°
43°
29
Hist. Avg.
69°
43°
30
Hist. Avg.
68°
42°
1
Hist. Avg.
68°
42°
2
Hist. Avg.
67°
42°
3
Hist. Avg.
67°
41°
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 78° to 84°, with overnight lows between 53° and 62°. The average high for September is 82° with an average low of 59°. 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.
