S
M
T
W
T
F
S
30
78°
55°
31
76°
61°
1
78°
62°
2
68°
61°
3
81°
66°
4
81°
63°
5
78°
59°
6
71°
52°
7
77°
49°
8
77°
52°
9
80°
57°
10
83°
62°
11
76°
55°
12
76°
49°
13
75°
63°
14
71°
51°
15
69°
44°
16
76°
52°
17
80°
63°
18
78°
57°
19
68°
57°
20
65°
59°
21
70°
57°
22
65°
51°
23
66°
48°
24
65°
46°
25
67°
51°
26
61°
55°
27
61°
58°
28
60°
52°
29
68°
53°
30
72°
58°
1
74°
62°
2
82°
52°
3
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Milford
New Milford's September 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 47° and 62°. The average high for September is 75° with an average low of 55°. 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 Milford. See also: October | November | December.
