S
M
T
W
T
F
S
30
82°
54°
31
79°
62°
1
73°
63°
2
74°
62°
3
82°
64°
4
84°
62°
5
79°
58°
6
70°
53°
7
80°
55°
8
81°
61°
9
80°
66°
10
84°
63°
11
78°
55°
12
80°
60°
13
82°
61°
14
83°
60°
15
79°
61°
16
77°
58°
17
77°
56°
18
75°
57°
19
77°
58°
20
76°
53°
21
75°
57°
22
69°
57°
23
69°
56°
24
70°
56°
25
71°
54°
26
73°
54°
27
69°
50°
28
69°
55°
29
74°
55°
30
75°
54°
1
74°
55°
2
73°
55°
3
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in North Haven
North Haven's September 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 50° and 66°. The average high for September is 76° with an average low of 57°. 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 North Haven. See also: October | November | December.
