S
M
T
W
T
F
S
29
48°
37°
30
52°
35°
1
51°
27°
2
49°
25°
3
39°
26°
4
38°
32°
5
44°
28°
6
42°
25°
7
38°
32°
8
45°
28°
9
46°
25°
10
38°
20°
11
34°
17°
12
32°
16°
13
30°
21°
14
33°
15°
15
33°
16°
16
28°
16°
17
30°
18°
18
38°
17°
19
36°
18°
20
31°
25°
21
35°
26°
22
36°
23°
23
34°
22°
24
32°
25°
25
43°
25°
26
44°
23°
27
39°
24°
28
Hist. Avg.
34°
20°
29
Hist. Avg.
34°
20°
30
Hist. Avg.
34°
20°
31
Hist. Avg.
34°
19°
1
Hist. Avg.
34°
19°
2
Hist. Avg.
33°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Worcester
Worcester's December 2026 forecast shows daily high temperatures ranging from 28° to 52°, with overnight lows between 15° 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 Worcester. See also: January | February | March.