S
M
T
W
T
F
S
29
39°
29°
30
49°
25°
1
48°
23°
2
45°
31°
3
46°
22°
4
47°
21°
5
35°
20°
6
33°
20°
7
33°
21°
8
34°
25°
9
36°
31°
10
42°
30°
11
45°
26°
12
40°
24°
13
35°
24°
14
34°
21°
15
35°
17°
16
32°
15°
17
29°
17°
18
29°
26°
19
36°
25°
20
36°
20°
21
41°
20°
22
31°
29°
23
42°
31°
24
42°
26°
25
41°
25°
26
40°
25°
27
37°
26°
28
39°
27°
29
40°
27°
30
40°
29°
31
42°
27°
1
43°
24°
2
41°
23°
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 29° to 49°, with overnight lows between 15° and 31°. 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.
