S
M
T
W
T
F
S
29
52°
38°
30
53°
37°
1
52°
38°
2
53°
35°
3
41°
34°
4
45°
32°
5
50°
35°
6
49°
34°
7
41°
30°
8
38°
24°
9
36°
23°
10
36°
25°
11
37°
33°
12
40°
29°
13
41°
27°
14
37°
21°
15
36°
25°
16
38°
30°
17
42°
31°
18
44°
28°
19
43°
22°
20
39°
21°
21
35°
18°
22
33°
22°
23
34°
28°
24
37°
26°
25
37°
19°
26
36°
13°
27
32°
17°
28
31°
16°
29
32°
13°
30
31°
24°
31
38°
20°
1
40°
15°
2
32°
11°
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 31° to 53°, with overnight lows between 11° and 38°. The average high for December is 40° with an average low of 26°. 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.
