S
M
T
W
T
F
S
30
85°
58°
31
80°
67°
1
91°
72°
2
73°
69°
3
88°
69°
4
86°
72°
5
81°
66°
6
79°
63°
7
79°
61°
8
N/A
9
87°
71°
10
83°
67°
11
81°
57°
12
80°
65°
13
81°
64°
14
83°
62°
15
81°
64°
16
80°
58°
17
77°
58°
18
73°
54°
19
74°
52°
20
74°
52°
21
73°
54°
22
71°
58°
23
71°
57°
24
72°
57°
25
72°
56°
26
77°
54°
27
73°
51°
28
74°
55°
29
76°
56°
30
77°
56°
1
76°
55°
2
75°
56°
3
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Langhorne
Langhorne's September 2026 forecast shows daily high temperatures ranging from 71° to 87°, with overnight lows between 51° and 71°. The average high for September is 77° with an average low of 58°. 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 Langhorne. See also: October | November | December.
