S
M
T
W
T
F
S
30
65°
47°
31
66°
49°
1
65°
56°
2
64°
56°
3
63°
55°
4
63°
54°
5
64°
53°
6
65°
48°
7
64°
47°
8
65°
48°
9
67°
46°
10
69°
47°
11
67°
52°
12
62°
46°
13
61°
52°
14
64°
48°
15
61°
47°
16
Hist. Avg.
67°
50°
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 69°, with overnight lows between 46° and 56°. The average high for September is 64° with an average low of 50°. 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.