S
M
T
W
T
F
S
30
80°
52°
31
76°
66°
1
77°
66°
2
73°
65°
3
81°
68°
4
83°
62°
5
80°
59°
6
74°
54°
7
78°
58°
8
82°
64°
9
79°
72°
10
82°
63°
11
75°
61°
12
76°
63°
13
77°
63°
14
80°
64°
15
81°
66°
16
82°
59°
17
75°
58°
18
70°
55°
19
77°
61°
20
77°
60°
21
73°
58°
22
72°
59°
23
72°
62°
24
75°
59°
25
72°
58°
26
74°
61°
27
75°
60°
28
74°
56°
29
66°
53°
30
67°
55°
1
66°
51°
2
65°
55°
3
66°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Eastport
Eastport's September 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 51° and 72°. The average high for September is 75° with an average low of 60°. 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 Eastport. See also: October | November | December.
