S
M
T
W
T
F
S
29
55°
41°
30
58°
36°
1
49°
33°
2
59°
40°
3
56°
36°
4
53°
31°
5
47°
33°
6
46°
39°
7
45°
39°
8
48°
38°
9
53°
40°
10
57°
38°
11
44°
32°
12
45°
35°
13
53°
30°
14
43°
34°
15
51°
33°
16
46°
35°
17
52°
39°
18
56°
38°
19
51°
37°
20
46°
31°
21
43°
31°
22
53°
37°
23
54°
34°
24
39°
29°
25
39°
25°
26
41°
27°
27
43°
30°
28
42°
26°
29
42°
26°
30
43°
27°
31
43°
23°
1
40°
27°
2
40°
27°
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 59°, with overnight lows between 23° and 41°. The average high for December is 48° with an average low of 33°. 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.
