S
M
T
W
T
F
S
29
48°
28°
30
50°
35°
1
51°
28°
2
51°
24°
3
43°
31°
4
48°
36°
5
54°
41°
6
57°
35°
7
58°
32°
8
56°
32°
9
48°
35°
10
53°
36°
11
51°
35°
12
53°
29°
13
47°
22°
14
41°
21°
15
38°
29°
16
41°
30°
17
46°
34°
18
45°
35°
19
49°
37°
20
57°
30°
21
57°
26°
22
45°
30°
23
46°
28°
24
41°
31°
25
43°
30°
26
43°
18°
27
40°
17°
28
39°
24°
29
38°
14°
30
37°
13°
31
35°
14°
1
31°
21°
2
39°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Warsaw
Warsaw's December 2026 forecast shows daily high temperatures ranging from 31° to 58°, with overnight lows between 13° and 41°. The average high for December is 46° with an average low of 28°. 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 Warsaw. See also: January | February | March.
