S
M
T
W
T
F
S
29
46°
34°
30
48°
37°
1
50°
36°
2
51°
38°
3
52°
37°
4
38°
32°
5
50°
29°
6
56°
27°
7
41°
25°
8
39°
23°
9
40°
20°
10
36°
17°
11
34°
18°
12
33°
23°
13
35°
21°
14
37°
24°
15
37°
30°
16
38°
31°
17
48°
24°
18
48°
24°
19
38°
25°
20
37°
21°
21
38°
20°
22
34°
18°
23
35°
20°
24
38°
29°
25
40°
34°
26
47°
30°
27
51°
27°
28
48°
25°
29
38°
26°
30
39°
27°
31
39°
24°
1
41°
21°
2
39°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hagerstown
Hagerstown's December 2026 forecast shows daily high temperatures ranging from 33° to 56°, with overnight lows between 17° and 38°. The average high for December is 42° 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 Hagerstown. See also: January | February | March.
