S
M
T
W
T
F
S
29
44°
27°
30
45°
26°
1
46°
30°
2
45°
32°
3
54°
29°
4
46°
30°
5
44°
27°
6
43°
24°
7
41°
22°
8
39°
21°
9
40°
24°
10
42°
29°
11
41°
28°
12
40°
20°
13
51°
34°
14
49°
35°
15
Hist. Avg.
43°
24°
16
Hist. Avg.
43°
24°
17
Hist. Avg.
43°
23°
18
Hist. Avg.
43°
23°
19
Hist. Avg.
42°
23°
20
Hist. Avg.
42°
23°
21
Hist. Avg.
42°
23°
22
Hist. Avg.
42°
22°
23
Hist. Avg.
42°
22°
24
Hist. Avg.
42°
22°
25
Hist. Avg.
41°
22°
26
Hist. Avg.
41°
22°
27
Hist. Avg.
41°
22°
28
Hist. Avg.
41°
22°
29
Hist. Avg.
41°
22°
30
Hist. Avg.
41°
22°
31
Hist. Avg.
41°
21°
1
Hist. Avg.
41°
21°
2
Hist. Avg.
40°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Harrisonburg
Harrisonburg's December 2026 forecast shows daily high temperatures ranging from 39° to 54°, with overnight lows between 20° and 35°. The average high for December is 44° with an average low of 27°. 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 Harrisonburg. See also: January | February | March.
