S
M
T
W
T
F
S
30
85°
50°
31
78°
54°
1
71°
60°
2
78°
56°
3
77°
61°
4
85°
58°
5
73°
52°
6
69°
47°
7
80°
42°
8
81°
47°
9
80°
50°
10
86°
66°
11
78°
46°
12
78°
39°
13
69°
56°
14
74°
44°
15
71°
38°
16
79°
43°
17
81°
59°
18
80°
47°
19
67°
45°
20
62°
53°
21
66°
50°
22
60°
50°
23
63°
46°
24
66°
46°
25
65°
47°
26
67°
45°
27
70°
46°
28
68°
46°
29
70°
48°
30
71°
47°
1
72°
44°
2
73°
48°
3
65°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Millis
Millis's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 44° and 53°. The average high for September is 68° with an average low of 47°. 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 Millis. See also: October | November | December.
