S
M
T
W
T
F
S
29
50°
39°
30
62°
40°
1
59°
41°
2
60°
39°
3
60°
34°
4
50°
30°
5
57°
33°
6
57°
37°
7
51°
33°
8
46°
32°
9
46°
30°
10
47°
25°
11
44°
24°
12
44°
24°
13
48°
23°
14
47°
22°
15
45°
26°
16
45°
32°
17
47°
33°
18
52°
35°
19
54°
24°
20
51°
20°
21
45°
20°
22
41°
23°
23
44°
27°
24
44°
22°
25
44°
20°
26
41°
21°
27
43°
21°
28
42°
22°
29
43°
23°
30
45°
30°
31
54°
23°
1
54°
19°
2
42°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Fallston
Fallston's December 2026 forecast shows daily high temperatures ranging from 41° to 62°, with overnight lows between 17° and 41°. The average high for December is 49° with an average low of 28°. 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 Fallston. See also: January | February | March.
