S
M
T
W
T
F
S
30
65°
51°
31
65°
48°
1
66°
51°
2
65°
53°
3
64°
53°
4
65°
52°
5
62°
50°
6
63°
48°
7
62°
46°
8
61°
52°
9
63°
48°
10
62°
50°
11
60°
49°
12
59°
52°
13
61°
52°
14
60°
53°
15
61°
52°
16
62°
52°
17
Hist. Avg.
61°
50°
18
Hist. Avg.
60°
49°
19
Hist. Avg.
60°
49°
20
Hist. Avg.
60°
49°
21
Hist. Avg.
60°
49°
22
Hist. Avg.
60°
49°
23
Hist. Avg.
60°
49°
24
Hist. Avg.
59°
49°
25
Hist. Avg.
59°
49°
26
Hist. Avg.
59°
48°
27
Hist. Avg.
59°
48°
28
Hist. Avg.
59°
48°
29
Hist. Avg.
59°
48°
30
Hist. Avg.
59°
48°
1
Hist. Avg.
58°
48°
2
Hist. Avg.
58°
48°
3
Hist. Avg.
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lanchester
Lanchester's September 2026 forecast shows daily high temperatures ranging from 59° to 66°, with overnight lows between 46° and 53°. The average high for September is 63° with an average low of 51°. 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 Lanchester. See also: October | November | December.