S
M
T
W
T
F
S
29
50°
37°
30
53°
37°
1
51°
35°
2
49°
32°
3
41°
31°
4
46°
31°
5
51°
35°
6
46°
32°
7
38°
24°
8
37°
22°
9
36°
21°
10
37°
26°
11
40°
33°
12
42°
27°
13
41°
26°
14
36°
19°
15
35°
24°
16
37°
28°
17
39°
27°
18
41°
25°
19
40°
19°
20
36°
18°
21
32°
17°
22
32°
21°
23
36°
25°
24
36°
23°
25
35°
16°
26
34°
13°
27
32°
15°
28
30°
15°
29
31°
14°
30
32°
21°
31
34°
16°
1
34°
13°
2
31°
10°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Flat Rock
Flat Rock's December 2026 forecast shows daily high temperatures ranging from 30° to 53°, with overnight lows between 10° and 37°. The average high for December is 39° with an average low of 24°. 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 Flat Rock. See also: January | February | March.
