S
M
T
W
T
F
S
29
59°
33°
30
55°
26°
1
53°
26°
2
53°
29°
3
52°
28°
4
54°
34°
5
54°
34°
6
58°
27°
7
54°
25°
8
54°
28°
9
55°
29°
10
54°
33°
11
58°
35°
12
62°
30°
13
58°
24°
14
53°
21°
15
49°
24°
16
51°
24°
17
49°
23°
18
50°
24°
19
51°
27°
20
51°
25°
21
52°
24°
22
52°
30°
23
53°
23°
24
51°
24°
25
51°
27°
26
53°
26°
27
52°
24°
28
52°
29°
29
53°
36°
30
56°
31°
31
58°
26°
1
57°
28°
2
58°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Blackrock
Blackrock's December 2026 forecast shows daily high temperatures ranging from 49° to 62°, with overnight lows between 21° and 36°. The average high for December is 54° with an average low of 28°. 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 Blackrock. See also: January | February | March.
