S
M
T
W
T
F
S
29
46°
38°
30
51°
33°
1
52°
28°
2
44°
35°
3
46°
35°
4
53°
31°
5
46°
34°
6
49°
39°
7
51°
37°
8
54°
33°
9
51°
33°
10
45°
36°
11
49°
35°
12
50°
35°
13
50°
31°
14
43°
33°
15
44°
35°
16
51°
32°
17
52°
29°
18
44°
29°
19
46°
28°
20
44°
32°
21
43°
35°
22
50°
34°
23
50°
34°
24
48°
33°
25
48°
29°
26
45°
27°
27
41°
25°
28
39°
27°
29
42°
26°
30
41°
26°
31
39°
32°
1
47°
19°
2
50°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Harrison
Harrison's December 2026 forecast shows daily high temperatures ranging from 39° to 54°, with overnight lows between 15° and 39°. The average high for December is 47° with an average low of 31°. 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 Harrison. See also: January | February | March.
