S
M
T
W
T
F
S
29
65°
50°
30
64°
50°
1
64°
49°
2
63°
51°
3
63°
48°
4
58°
44°
5
58°
47°
6
59°
50°
7
58°
45°
8
58°
47°
9
56°
50°
10
55°
42°
11
56°
41°
12
54°
41°
13
56°
42°
14
55°
41°
15
56°
42°
16
55°
42°
17
57°
43°
18
59°
42°
19
59°
47°
20
58°
44°
21
60°
45°
22
60°
44°
23
59°
41°
24
56°
40°
25
55°
39°
26
55°
39°
27
56°
40°
28
58°
42°
29
62°
43°
30
61°
42°
31
62°
48°
1
61°
49°
2
62°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Forest Hill
Forest Hill's December 2026 forecast shows daily high temperatures ranging from 54° to 65°, with overnight lows between 39° and 51°. The average high for December is 59° with an average low of 45°. 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 Forest Hill. See also: January | February | March.