S
M
T
W
T
F
S
29
45°
37°
30
46°
40°
1
49°
34°
2
44°
33°
3
44°
33°
4
49°
38°
5
49°
38°
6
48°
37°
7
48°
38°
8
46°
39°
9
49°
39°
10
49°
37°
11
48°
37°
12
47°
31°
13
46°
34°
14
43°
35°
15
43°
39°
16
48°
39°
17
49°
37°
18
51°
38°
19
49°
33°
20
47°
33°
21
42°
34°
22
42°
33°
23
43°
35°
24
48°
31°
25
44°
30°
26
42°
35°
27
45°
34°
28
45°
34°
29
43°
37°
30
50°
34°
31
46°
30°
1
47°
29°
2
42°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Colchester
Colchester's December 2026 forecast shows daily high temperatures ranging from 42° to 51°, with overnight lows between 28° and 40°. The average high for December is 46° with an average low of 35°. 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 Colchester. See also: January | February | March.
