S
M
T
W
T
F
S
29
70°
47°
30
68°
46°
1
69°
38°
2
54°
33°
3
55°
33°
4
59°
41°
5
65°
38°
6
55°
34°
7
55°
33°
8
53°
32°
9
53°
31°
10
54°
31°
11
55°
32°
12
57°
35°
13
63°
37°
14
57°
35°
15
56°
36°
16
54°
36°
17
57°
33°
18
55°
31°
19
53°
29°
20
53°
30°
21
54°
31°
22
58°
31°
23
52°
32°
24
51°
30°
25
51°
29°
26
52°
30°
27
53°
30°
28
53°
31°
29
54°
32°
30
52°
32°
31
54°
29°
1
52°
29°
2
52°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Garrison
Garrison's December 2026 forecast shows daily high temperatures ranging from 51° to 70°, with overnight lows between 29° and 47°. The average high for December is 56° 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 Garrison. See also: January | February | March.
