S
M
T
W
T
F
S
30
86°
61°
31
84°
62°
1
85°
61°
2
84°
62°
3
85°
60°
4
84°
56°
5
83°
61°
6
84°
60°
7
Hist. Avg.
80°
56°
8
Hist. Avg.
79°
55°
9
Hist. Avg.
79°
55°
10
Hist. Avg.
79°
55°
11
Hist. Avg.
78°
54°
12
Hist. Avg.
78°
54°
13
Hist. Avg.
78°
54°
14
Hist. Avg.
77°
53°
15
Hist. Avg.
77°
53°
16
Hist. Avg.
76°
52°
17
Hist. Avg.
76°
52°
18
Hist. Avg.
76°
52°
19
Hist. Avg.
75°
51°
20
Hist. Avg.
75°
51°
21
Hist. Avg.
74°
50°
22
Hist. Avg.
74°
50°
23
Hist. Avg.
74°
50°
24
Hist. Avg.
73°
49°
25
Hist. Avg.
73°
49°
26
Hist. Avg.
72°
48°
27
Hist. Avg.
72°
48°
28
Hist. Avg.
72°
47°
29
Hist. Avg.
71°
47°
30
Hist. Avg.
71°
47°
1
Hist. Avg.
70°
46°
2
Hist. Avg.
70°
46°
3
Hist. Avg.
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Millstone
Millstone's September 2026 forecast shows daily high temperatures ranging from 83° to 86°, with overnight lows between 56° and 62°. The average high for September is 84° with an average low of 60°. 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 Millstone. See also: October | November | December.
