S
M
T
W
T
F
S
30
98°
66°
31
87°
61°
1
87°
61°
2
95°
61°
3
98°
69°
4
101°
61°
5
92°
67°
6
81°
68°
7
83°
67°
8
86°
59°
9
80°
55°
10
86°
52°
11
93°
55°
12
76°
53°
13
64°
57°
14
75°
52°
15
71°
50°
16
68°
52°
17
74°
53°
18
71°
52°
19
75°
50°
20
73°
51°
21
77°
55°
22
75°
53°
23
75°
52°
24
74°
47°
25
79°
55°
26
77°
55°
27
78°
56°
28
78°
54°
29
76°
53°
30
75°
51°
1
68°
52°
2
76°
51°
3
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Milltown
Milltown's September 2026 forecast shows daily high temperatures ranging from 64° to 93°, with overnight lows between 47° and 57°. The average high for September is 75° with an average low of 53°. 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 Milltown. See also: October | November | December.