S
M
T
W
T
F
S
29
60°
39°
30
59°
32°
1
57°
32°
2
44°
31°
3
43°
32°
4
44°
43°
5
50°
42°
6
56°
33°
7
46°
33°
8
44°
41°
9
49°
36°
10
51°
32°
11
44°
31°
12
42°
30°
13
46°
29°
14
41°
28°
15
40°
28°
16
42°
27°
17
41°
38°
18
47°
38°
19
Hist. Avg.
47°
34°
20
Hist. Avg.
47°
34°
21
Hist. Avg.
47°
33°
22
Hist. Avg.
46°
33°
23
Hist. Avg.
46°
33°
24
Hist. Avg.
46°
33°
25
Hist. Avg.
46°
32°
26
Hist. Avg.
46°
32°
27
Hist. Avg.
45°
32°
28
Hist. Avg.
45°
32°
29
Hist. Avg.
45°
32°
30
Hist. Avg.
45°
32°
31
Hist. Avg.
45°
31°
1
Hist. Avg.
44°
31°
2
Hist. Avg.
44°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Baltimore
Baltimore's December 2026 forecast shows daily high temperatures ranging from 40° to 60°, with overnight lows between 27° and 43°. The average high for December is 47° 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.