S
M
T
W
T
F
S
30
81°
56°
31
85°
49°
1
76°
54°
2
84°
55°
3
85°
49°
4
80°
51°
5
82°
53°
6
82°
54°
7
83°
45°
8
73°
41°
9
70°
42°
10
69°
39°
11
68°
41°
12
69°
42°
13
73°
43°
14
75°
37°
15
67°
38°
16
66°
38°
17
66°
37°
18
66°
37°
19
66°
39°
20
66°
40°
21
73°
47°
22
75°
46°
23
75°
47°
24
73°
47°
25
74°
41°
26
70°
44°
27
67°
44°
28
71°
41°
29
62°
38°
30
62°
42°
1
65°
37°
2
60°
41°
3
62°
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 60° to 85°, with overnight lows between 32° and 56°. The average high for September is 72° with an average low of 44°. 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.