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