S
M
T
W
T
F
S
30
77°
50°
31
83°
51°
1
84°
56°
2
77°
58°
3
71°
52°
4
70°
48°
5
73°
45°
6
69°
47°
7
76°
54°
8
82°
52°
9
84°
52°
10
81°
62°
11
77°
49°
12
75°
57°
13
59°
51°
14
71°
46°
15
64°
52°
16
77°
48°
17
85°
52°
18
85°
56°
19
86°
55°
20
85°
53°
21
86°
56°
22
81°
59°
23
75°
56°
24
72°
51°
25
67°
51°
26
66°
47°
27
68°
46°
28
76°
41°
29
69°
59°
30
69°
54°
1
71°
54°
2
78°
50°
3
78°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chelan Falls
Chelan Falls'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 Chelan Falls. See also: October | November | December.
