S
M
T
W
T
F
S
29
37°
22°
30
36°
20°
1
34°
19°
2
32°
24°
3
36°
15°
4
34°
15°
5
28°
25°
6
36°
26°
7
35°
28°
8
41°
25°
9
44°
23°
10
41°
19°
11
35°
21°
12
33°
17°
13
31°
19°
14
29°
21°
15
30°
19°
16
29°
20°
17
33°
12°
18
33°
21°
19
32°
20°
20
36°
22°
21
36°
19°
22
37°
13°
23
36°
19°
24
34°
23°
25
36°
17°
26
36°
10°
27
34°
13°
28
23°
4°
29
33°
9°
30
21°
10°
31
28°
6°
1
28°
-2°
2
32°
10°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Potsdam
Potsdam's December 2026 forecast shows daily high temperatures ranging from 21° to 44°, with overnight lows between -2° and 28°. The average high for December is 33° with an average low of 17°. 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 Potsdam. See also: January | February | March.
