S
M
T
W
T
F
S
30
65°
47°
31
66°
43°
1
64°
41°
2
64°
45°
3
73°
51°
4
74°
48°
5
70°
48°
6
64°
45°
7
62°
39°
8
65°
43°
9
69°
47°
10
71°
46°
11
70°
37°
12
63°
37°
13
63°
45°
14
60°
35°
15
64°
34°
16
55°
34°
17
54°
32°
18
55°
37°
19
57°
44°
20
63°
39°
21
65°
35°
22
55°
35°
23
55°
34°
24
54°
28°
25
52°
29°
26
53°
34°
27
54°
31°
28
53°
40°
29
62°
39°
30
54°
33°
1
59°
37°
2
59°
39°
3
Hist. Avg.
55°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New England
New England's September 2026 forecast shows daily high temperatures ranging from 52° to 74°, with overnight lows between 28° and 51°. The average high for September is 61° 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 New England. See also: October | November | December.