S
M
T
W
T
F
S
29
41°
25°
30
46°
33°
1
47°
38°
2
45°
38°
3
43°
37°
4
48°
38°
5
48°
38°
6
50°
37°
7
48°
35°
8
42°
32°
9
40°
30°
10
42°
28°
11
52°
30°
12
55°
26°
13
55°
22°
14
39°
26°
15
41°
25°
16
39°
26°
17
39°
31°
18
45°
34°
19
50°
35°
20
52°
35°
21
51°
34°
22
51°
36°
23
54°
35°
24
54°
22°
25
53°
19°
26
43°
21°
27
36°
27°
28
42°
34°
29
48°
35°
30
50°
37°
31
52°
38°
1
53°
27°
2
54°
22°
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 36° to 55°, with overnight lows between 19° and 38°. 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.
