S
M
T
W
T
F
S
30
79°
63°
31
80°
64°
1
84°
58°
2
79°
57°
3
79°
58°
4
78°
56°
5
78°
56°
6
79°
59°
7
81°
57°
8
80°
61°
9
83°
61°
10
78°
60°
11
80°
60°
12
82°
59°
13
82°
60°
14
81°
60°
15
82°
59°
16
81°
57°
17
79°
58°
18
73°
59°
19
79°
58°
20
80°
58°
21
79°
56°
22
78°
50°
23
76°
56°
24
71°
56°
25
72°
57°
26
Hist. Avg.
75°
56°
27
Hist. Avg.
75°
56°
28
Hist. Avg.
75°
56°
29
Hist. Avg.
74°
55°
30
Hist. Avg.
74°
55°
1
Hist. Avg.
73°
54°
2
Hist. Avg.
73°
54°
3
Hist. Avg.
72°
54°
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 84°, with overnight lows between 50° and 64°. The average high for September is 79° 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.
