S
M
T
W
T
F
S
30
54°
37°
31
55°
36°
1
55°
35°
2
54°
39°
3
Hist. Avg.
61°
44°
4
Hist. Avg.
61°
44°
5
Hist. Avg.
61°
44°
6
Hist. Avg.
61°
45°
7
Hist. Avg.
61°
45°
8
Hist. Avg.
62°
45°
9
Hist. Avg.
62°
45°
10
Hist. Avg.
62°
45°
11
Hist. Avg.
62°
45°
12
Hist. Avg.
62°
45°
13
Hist. Avg.
62°
45°
14
Hist. Avg.
62°
45°
15
Hist. Avg.
63°
46°
16
Hist. Avg.
63°
46°
17
Hist. Avg.
63°
46°
18
Hist. Avg.
63°
46°
19
Hist. Avg.
63°
46°
20
Hist. Avg.
63°
46°
21
Hist. Avg.
63°
46°
22
Hist. Avg.
63°
46°
23
Hist. Avg.
64°
46°
24
Hist. Avg.
64°
46°
25
Hist. Avg.
64°
46°
26
Hist. Avg.
64°
46°
27
Hist. Avg.
64°
46°
28
Hist. Avg.
64°
46°
29
Hist. Avg.
64°
46°
30
Hist. Avg.
64°
46°
1
Hist. Avg.
65°
47°
2
Hist. Avg.
65°
47°
3
Hist. Avg.
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Millbrook
Millbrook's September 2026 forecast shows daily high temperatures ranging from 54° to 55°, with overnight lows between 35° and 39°. The average high for September is 55° with an average low of 37°. 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 Millbrook. See also: October | November | December.
