S
M
T
W
T
F
S
29
30°
20°
30
29°
20°
1
30°
9°
2
30°
-2°
3
29°
-3°
4
13°
-2°
5
10°
-2°
6
11°
10°
7
16°
11°
8
28°
14°
9
28°
15°
10
26°
12°
11
27°
11°
12
28°
11°
13
27°
10°
14
27°
11°
15
26°
10°
16
25°
6°
17
22°
11°
18
22°
9°
19
21°
10°
20
20°
12°
21
22°
6°
22
22°
7°
23
19°
4°
24
20°
-5°
25
16°
-5°
26
9°
-1°
27
9°
1°
28
12°
3°
29
14°
9°
30
22°
7°
31
23°
13°
1
23°
11°
2
Hist. Avg.
10°
-5°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Lansdowne
Lansdowne's December 2026 forecast shows daily high temperatures ranging from 9° to 30°, with overnight lows between -5° and 20°. The average high for December is 22° with an average low of 7°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Lansdowne. See also: January | February | March.
