S
M
T
W
T
F
S
30
48°
46°
31
49°
44°
1
50°
44°
2
61°
44°
3
57°
51°
4
59°
48°
5
53°
47°
6
51°
48°
7
51°
46°
8
51°
46°
9
49°
46°
10
49°
44°
11
56°
47°
12
51°
46°
13
54°
46°
14
56°
46°
15
53°
47°
16
48°
46°
17
49°
47°
18
49°
45°
19
47°
43°
20
43°
39°
21
44°
39°
22
43°
39°
23
45°
39°
24
49°
43°
25
50°
45°
26
48°
44°
27
47°
43°
28
46°
39°
29
45°
37°
30
41°
37°
1
42°
36°
2
43°
37°
3
42°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cape Newenham LRRS Airport
Cape Newenham LRRS Airport's September 2026 forecast shows daily high temperatures ranging from 41° to 50°, with overnight lows between 36° and 45°. The average high for September is 45° with an average low of 39°. 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 Cape Newenham LRRS Airport. See also: October | November | December.
