S
M
T
W
T
F
S
29
40°
24°
30
42°
27°
1
46°
32°
2
45°
29°
3
44°
31°
4
49°
34°
5
51°
25°
6
38°
23°
7
38°
28°
8
48°
34°
9
50°
32°
10
44°
33°
11
47°
34°
12
48°
31°
13
42°
25°
14
36°
21°
15
35°
20°
16
34°
22°
17
36°
26°
18
40°
30°
19
46°
30°
20
44°
32°
21
48°
31°
22
40°
27°
23
39°
26°
24
45°
31°
25
32°
19°
26
34°
22°
27
34°
23°
28
35°
29°
29
48°
24°
30
47°
23°
31
37°
23°
1
37°
20°
2
39°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Brookside
Brookside's December 2026 forecast shows daily high temperatures ranging from 32° to 51°, with overnight lows between 17° and 34°. The average high for December is 42° 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 Brookside. See also: January | February | March.
