S
M
T
W
T
F
S
30
77°
58°
31
76°
56°
1
76°
56°
2
75°
53°
3
72°
52°
4
69°
55°
5
67°
47°
6
67°
54°
7
66°
54°
8
71°
53°
9
74°
55°
10
65°
51°
11
64°
54°
12
66°
53°
13
65°
54°
14
72°
54°
15
74°
49°
16
65°
46°
17
64°
51°
18
67°
48°
19
71°
47°
20
Hist. Avg.
67°
49°
21
Hist. Avg.
67°
48°
22
Hist. Avg.
67°
48°
23
Hist. Avg.
66°
48°
24
Hist. Avg.
66°
48°
25
Hist. Avg.
66°
48°
26
Hist. Avg.
65°
47°
27
Hist. Avg.
65°
47°
28
Hist. Avg.
65°
47°
29
Hist. Avg.
64°
47°
30
Hist. Avg.
64°
46°
1
Hist. Avg.
64°
46°
2
Hist. Avg.
63°
46°
3
Hist. Avg.
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Chuckanut
Chuckanut's September 2026 forecast shows daily high temperatures ranging from 64° to 77°, with overnight lows between 46° and 58°. The average high for September is 70° with an average low of 52°. 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 Chuckanut. See also: October | November | December.
