S
M
T
W
T
F
S
30
84°
70°
31
90°
64°
1
93°
66°
2
93°
70°
3
95°
70°
4
96°
71°
5
94°
71°
6
89°
67°
7
78°
64°
8
83°
64°
9
86°
68°
10
88°
70°
11
87°
66°
12
83°
64°
13
82°
65°
14
82°
63°
15
81°
63°
16
80°
62°
17
82°
61°
18
73°
65°
19
75°
65°
20
75°
64°
21
74°
65°
22
75°
65°
23
79°
64°
24
75°
64°
25
73°
63°
26
75°
64°
27
78°
60°
28
76°
54°
29
70°
53°
30
71°
53°
1
70°
56°
2
70°
60°
3
71°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mill Spring
Mill Spring's September 2026 forecast shows daily high temperatures ranging from 70° to 96°, with overnight lows between 53° and 71°. The average high for September is 79° with an average low of 63°. 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 Spring. See also: October | November | December.
