S
M
T
W
T
F
S
29
51°
30°
30
42°
28°
1
41°
31°
2
40°
35°
3
43°
31°
4
44°
27°
5
39°
26°
6
40°
23°
7
39°
24°
8
35°
22°
9
36°
21°
10
35°
20°
11
33°
28°
12
41°
25°
13
36°
28°
14
Hist. Avg.
39°
22°
15
Hist. Avg.
39°
21°
16
Hist. Avg.
38°
21°
17
Hist. Avg.
38°
21°
18
Hist. Avg.
38°
20°
19
Hist. Avg.
38°
20°
20
Hist. Avg.
37°
20°
21
Hist. Avg.
37°
19°
22
Hist. Avg.
37°
19°
23
Hist. Avg.
36°
19°
24
Hist. Avg.
36°
18°
25
Hist. Avg.
36°
18°
26
Hist. Avg.
36°
18°
27
Hist. Avg.
35°
18°
28
Hist. Avg.
35°
17°
29
Hist. Avg.
35°
17°
30
Hist. Avg.
35°
17°
31
Hist. Avg.
35°
17°
1
Hist. Avg.
34°
16°
2
Hist. Avg.
34°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Fort Montgomery
Fort Montgomery's December 2026 forecast shows daily high temperatures ranging from 33° to 51°, with overnight lows between 20° and 35°. The average high for December is 40° with an average low of 27°. 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 Fort Montgomery. See also: January | February | March.
