S
M
T
W
T
F
S
29
38°
27°
30
34°
26°
1
34°
24°
2
33°
23°
3
35°
27°
4
36°
24°
5
38°
26°
6
38°
25°
7
37°
30°
8
36°
30°
9
37°
26°
10
30°
23°
11
42°
26°
12
42°
26°
13
35°
24°
14
34°
22°
15
36°
10°
16
34°
15°
17
28°
24°
18
36°
14°
19
39°
10°
20
28°
22°
21
29°
25°
22
38°
25°
23
38°
26°
24
37°
26°
25
39°
18°
26
39°
16°
27
37°
12°
28
24°
11°
29
24°
22°
30
36°
22°
31
37°
21°
1
37°
24°
2
38°
21°
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 24° to 42°, with overnight lows between 10° and 30°. The average high for December is 35° with an average low of 22°. 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.
