S
M
T
W
T
F
S
29
54°
34°
30
55°
42°
1
57°
47°
2
57°
47°
3
56°
46°
4
58°
47°
5
56°
46°
6
57°
42°
7
62°
44°
8
54°
38°
9
54°
33°
10
53°
40°
11
69°
37°
12
69°
32°
13
67°
32°
14
52°
33°
15
53°
32°
16
54°
33°
17
53°
42°
18
56°
47°
19
66°
46°
20
68°
44°
21
67°
43°
22
65°
48°
23
69°
39°
24
68°
30°
25
67°
29°
26
49°
30°
27
51°
32°
28
56°
44°
29
63°
46°
30
65°
46°
31
66°
48°
1
66°
40°
2
67°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Brookhaven
Brookhaven's December 2026 forecast shows daily high temperatures ranging from 49° to 69°, with overnight lows between 29° and 48°. The average high for December is 60° with an average low of 40°. 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 Brookhaven. See also: January | February | March.
