S
M
T
W
T
F
S
30
68°
56°
31
71°
54°
1
73°
59°
2
70°
54°
3
67°
52°
4
66°
50°
5
71°
51°
6
72°
51°
7
70°
54°
8
68°
51°
9
70°
52°
10
72°
50°
11
72°
54°
12
71°
52°
13
70°
52°
14
69°
51°
15
72°
52°
16
65°
51°
17
65°
52°
18
66°
47°
19
64°
52°
20
64°
48°
21
63°
45°
22
63°
46°
23
62°
44°
24
62°
43°
25
63°
43°
26
66°
46°
27
68°
52°
28
62°
50°
29
63°
45°
30
69°
49°
1
66°
51°
2
61°
51°
3
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Everett
Everett's September 2026 forecast shows daily high temperatures ranging from 61° to 73°, with overnight lows between 43° and 59°. The average high for September is 67° 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 Everett. See also: October | November | December.