S
M
T
W
T
F
S
30
66°
53°
31
65°
55°
1
65°
56°
2
70°
57°
3
74°
51°
4
74°
56°
5
71°
52°
6
66°
51°
7
72°
55°
8
64°
51°
9
64°
54°
10
66°
56°
11
62°
48°
12
63°
52°
13
63°
53°
14
62°
49°
15
61°
46°
16
62°
46°
17
Hist. Avg.
67°
50°
18
Hist. Avg.
67°
50°
19
Hist. Avg.
66°
50°
20
Hist. Avg.
66°
50°
21
Hist. Avg.
66°
49°
22
Hist. Avg.
66°
49°
23
Hist. Avg.
66°
49°
24
Hist. Avg.
65°
49°
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 Bridge
Deception Pass Bridge's September 2026 forecast shows daily high temperatures ranging from 61° to 74°, with overnight lows between 46° and 57°. The average high for September is 66° 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 Deception Pass Bridge. See also: October | November | December.