S
M
T
W
T
F
S
30
88°
65°
31
86°
66°
1
86°
65°
2
86°
64°
3
85°
65°
4
87°
64°
5
85°
64°
6
85°
65°
7
86°
58°
8
79°
57°
9
Hist. Avg.
80°
56°
10
Hist. Avg.
80°
56°
11
Hist. Avg.
79°
55°
12
Hist. Avg.
79°
55°
13
Hist. Avg.
79°
55°
14
Hist. Avg.
78°
54°
15
Hist. Avg.
78°
54°
16
Hist. Avg.
78°
54°
17
Hist. Avg.
77°
53°
18
Hist. Avg.
77°
53°
19
Hist. Avg.
77°
52°
20
Hist. Avg.
76°
52°
21
Hist. Avg.
76°
52°
22
Hist. Avg.
76°
51°
23
Hist. Avg.
75°
51°
24
Hist. Avg.
75°
50°
25
Hist. Avg.
74°
50°
26
Hist. Avg.
74°
49°
27
Hist. Avg.
74°
49°
28
Hist. Avg.
73°
48°
29
Hist. Avg.
73°
48°
30
Hist. Avg.
72°
48°
1
Hist. Avg.
72°
47°
2
Hist. Avg.
72°
47°
3
Hist. Avg.
71°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lansdowne
Lansdowne's September 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 57° and 66°. The average high for September is 85° with an average low of 63°. 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.
