S
M
T
W
T
F
S
30
81°
63°
31
71°
63°
1
68°
62°
2
73°
63°
3
76°
61°
4
79°
63°
5
72°
58°
6
68°
55°
7
75°
57°
8
76°
61°
9
76°
61°
10
80°
69°
11
74°
59°
12
72°
54°
13
70°
62°
14
71°
60°
15
65°
51°
16
71°
50°
17
76°
64°
18
75°
60°
19
64°
51°
20
63°
53°
21
65°
59°
22
65°
58°
23
64°
57°
24
63°
58°
25
61°
57°
26
N/A
27
67°
60°
28
69°
59°
29
62°
56°
30
66°
58°
1
70°
60°
2
72°
64°
3
66°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Eastham
Eastham's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Eastham. See also: October | November | December.
