S
M
T
W
T
F
S
30
71°
54°
31
69°
59°
1
67°
58°
2
64°
57°
3
67°
56°
4
70°
56°
5
68°
57°
6
72°
56°
7
73°
56°
8
72°
58°
9
67°
59°
10
66°
52°
11
65°
52°
12
65°
57°
13
66°
53°
14
65°
51°
15
68°
56°
16
67°
58°
17
63°
55°
18
64°
54°
19
63°
50°
20
64°
49°
21
65°
49°
22
65°
50°
23
68°
51°
24
70°
54°
25
70°
57°
26
62°
52°
27
61°
51°
28
61°
52°
29
62°
49°
30
60°
53°
1
60°
51°
2
61°
52°
3
59°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Edmonds
Edmonds's September 2026 forecast shows daily high temperatures ranging from 59° to 73°, with overnight lows between 49° and 59°. The average high for September is 66° with an average low of 54°. 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 Edmonds. See also: October | November | December.