S
M
T
W
T
F
S
30
80°
60°
31
83°
64°
1
85°
64°
2
86°
63°
3
86°
57°
4
84°
55°
5
77°
55°
6
78°
60°
7
81°
61°
8
82°
62°
9
83°
61°
10
78°
60°
11
82°
61°
12
82°
61°
13
81°
60°
14
81°
61°
15
83°
61°
16
83°
59°
17
81°
60°
18
80°
54°
19
79°
51°
20
74°
50°
21
72°
49°
22
71°
55°
23
73°
53°
24
77°
49°
25
70°
48°
26
70°
49°
27
72°
48°
28
76°
53°
29
75°
54°
30
77°
53°
1
71°
54°
2
71°
48°
3
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Lancaster
West Lancaster's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 48° and 64°. The average high for September is 78° 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 West Lancaster. See also: October | November | December.
