S
M
T
W
T
F
S
29
51°
46°
30
56°
45°
1
55°
47°
2
56°
45°
3
58°
44°
4
48°
42°
5
54°
44°
6
54°
43°
7
53°
40°
8
45°
38°
9
44°
33°
10
43°
34°
11
42°
38°
12
43°
37°
13
46°
35°
14
39°
28°
15
42°
31°
16
43°
37°
17
45°
38°
18
43°
40°
19
50°
33°
20
47°
25°
21
41°
25°
22
38°
27°
23
37°
32°
24
39°
32°
25
51°
33°
26
42°
26°
27
40°
24°
28
37°
24°
29
38°
25°
30
41°
38°
31
51°
31°
1
54°
25°
2
40°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Baltimore
Baltimore's December 2026 forecast shows daily high temperatures ranging from 37° to 58°, with overnight lows between 22° and 47°. The average high for December is 46° with an average low of 34°. 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 Baltimore. See also: January | February | March.
