S
M
T
W
T
F
S
30
72°
52°
31
72°
54°
1
71°
52°
2
71°
49°
3
72°
53°
4
74°
53°
5
70°
52°
6
69°
48°
7
71°
50°
8
78°
53°
9
80°
55°
10
80°
57°
11
79°
57°
12
80°
56°
13
80°
57°
14
77°
48°
15
71°
51°
16
72°
56°
17
78°
57°
18
79°
53°
19
78°
52°
20
77°
55°
21
74°
56°
22
76°
55°
23
77°
53°
24
75°
54°
25
74°
57°
26
75°
57°
27
76°
54°
28
67°
52°
29
64°
53°
30
66°
53°
1
64°
50°
2
61°
47°
3
60°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mill City
Mill City's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 47° and 57°. The average high for September is 73° 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 Mill City. See also: October | November | December.
