S
M
T
W
T
F
S
29
41°
33°
30
45°
26°
1
43°
22°
2
38°
27°
3
36°
32°
4
46°
28°
5
43°
30°
6
42°
33°
7
43°
33°
8
48°
30°
9
46°
27°
10
40°
30°
11
42°
30°
12
43°
29°
13
41°
21°
14
36°
24°
15
34°
31°
16
44°
27°
17
45°
25°
18
39°
26°
19
41°
23°
20
38°
25°
21
35°
28°
22
42°
27°
23
43°
28°
24
41°
27°
25
41°
23°
26
39°
19°
27
35°
19°
28
34°
20°
29
34°
18°
30
33°
21°
31
33°
25°
1
39°
16°
2
43°
10°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Worcester
Worcester's December 2026 forecast shows daily high temperatures ranging from 33° to 48°, with overnight lows between 10° and 33°. The average high for December is 40° with an average low of 26°. 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.
