S
M
T
W
T
F
S
29
46°
28°
30
51°
35°
1
47°
33°
2
48°
31°
3
54°
34°
4
56°
35°
5
49°
31°
6
45°
30°
7
44°
36°
8
51°
37°
9
55°
34°
10
54°
38°
11
52°
37°
12
50°
33°
13
44°
28°
14
44°
24°
15
41°
25°
16
40°
23°
17
41°
27°
18
46°
36°
19
55°
36°
20
53°
35°
21
52°
29°
22
42°
26°
23
48°
35°
24
54°
34°
25
42°
24°
26
42°
22°
27
43°
25°
28
42°
28°
29
48°
24°
30
42°
23°
31
42°
23°
1
43°
20°
2
42°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Forest
Forest's December 2026 forecast shows daily high temperatures ranging from 40° to 56°, with overnight lows between 20° and 38°. The average high for December is 47° with an average low of 30°. 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. See also: January | February | March.
