S
M
T
W
T
F
S
29
45°
27°
30
45°
24°
1
42°
29°
2
44°
23°
3
41°
23°
4
39°
27°
5
44°
36°
6
49°
40°
7
53°
32°
8
57°
29°
9
49°
27°
10
39°
30°
11
46°
29°
12
47°
28°
13
42°
27°
14
37°
24°
15
37°
20°
16
36°
26°
17
36°
28°
18
38°
32°
19
40°
36°
20
50°
34°
21
53°
26°
22
52°
28°
23
41°
32°
24
51°
30°
25
51°
31°
26
46°
29°
27
42°
19°
28
43°
21°
29
34°
14°
30
35°
12°
31
34°
13°
1
28°
14°
2
32°
16°
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 28° to 57°, with overnight lows between 12° and 40°. The average high for December is 43° 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 Harrison. See also: January | February | March.
