S
M
T
W
T
F
S
27
64°
57°
28
60°
55°
29
67°
55°
30
69°
54°
1
77°
54°
2
84°
57°
3
72°
49°
4
64°
43°
5
69°
49°
6
60°
37°
7
65°
32°
8
73°
44°
9
69°
42°
10
66°
43°
11
64°
55°
12
69°
50°
13
70°
50°
14
63°
41°
15
59°
45°
16
65°
51°
17
64°
45°
18
58°
42°
19
59°
42°
20
60°
45°
21
61°
41°
22
54°
46°
23
54°
36°
24
53°
36°
25
53°
43°
26
61°
45°
27
61°
35°
28
51°
34°
29
51°
34°
30
52°
41°
31
56°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Colchester
Colchester's October 2026 forecast shows daily high temperatures ranging from 51° to 70°, with overnight lows between 34° and 55°. The average high for October is 60° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Colchester. See also: November | December | January.