S
M
T
W
T
F
S
30
86°
59°
31
83°
69°
1
93°
70°
2
78°
70°
3
89°
69°
4
88°
70°
5
83°
63°
6
81°
59°
7
80°
56°
8
85°
54°
9
90°
62°
10
86°
71°
11
82°
61°
12
77°
69°
13
84°
66°
14
79°
55°
15
77°
60°
16
84°
64°
17
84°
62°
18
80°
59°
19
74°
54°
20
72°
53°
21
72°
51°
22
73°
54°
23
75°
56°
24
77°
52°
25
69°
48°
26
69°
52°
27
77°
56°
28
77°
55°
29
72°
51°
30
74°
56°
1
74°
54°
2
72°
51°
3
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Millersville
Millersville's September 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 48° and 69°. The average high for September is 76° with an average low of 56°. 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 Millersville. See also: October | November | December.
