S
M
T
W
T
F
S
30
72°
56°
31
73°
58°
1
75°
57°
2
75°
57°
3
74°
50°
4
73°
53°
5
72°
57°
6
73°
55°
7
74°
54°
8
71°
49°
9
65°
53°
10
66°
46°
11
71°
49°
12
68°
50°
13
63°
48°
14
63°
46°
15
64°
44°
16
64°
49°
17
63°
48°
18
62°
48°
19
63°
46°
20
63°
50°
21
66°
47°
22
68°
45°
23
67°
50°
24
61°
52°
25
Hist. Avg.
65°
49°
26
Hist. Avg.
65°
49°
27
Hist. Avg.
65°
48°
28
Hist. Avg.
64°
48°
29
Hist. Avg.
64°
48°
30
Hist. Avg.
64°
48°
1
Hist. Avg.
64°
48°
2
Hist. Avg.
64°
48°
3
Hist. Avg.
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Deception Pass State Park
Deception Pass State Park's September 2026 forecast shows daily high temperatures ranging from 61° to 75°, with overnight lows between 44° and 58°. The average high for September is 68° with an average low of 51°. 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 Deception Pass State Park. See also: October | November | December.
