S
M
T
W
T
F
S
30
88°
78°
31
90°
78°
1
93°
77°
2
94°
76°
3
92°
75°
4
87°
76°
5
92°
75°
6
93°
75°
7
96°
74°
8
91°
74°
9
86°
73°
10
88°
72°
11
87°
73°
12
89°
76°
13
88°
75°
14
90°
73°
15
89°
72°
16
91°
72°
17
90°
73°
18
90°
70°
19
88°
71°
20
87°
70°
21
90°
74°
22
90°
73°
23
89°
72°
24
88°
73°
25
88°
73°
26
87°
72°
27
88°
72°
28
86°
71°
29
85°
72°
30
87°
72°
1
87°
71°
2
86°
67°
3
80°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lansdowne
Lansdowne's September 2026 forecast shows daily high temperatures ranging from 80° to 96°, with overnight lows between 65° and 76°. The average high for September is 88° with an average low of 72°. 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 Lansdowne. See also: October | November | December.
