S
M
T
W
T
F
S
26
78°
60°
27
77°
59°
28
77°
59°
29
75°
56°
30
74°
59°
31
73°
59°
1
75°
58°
2
76°
59°
3
75°
59°
4
73°
58°
5
72°
58°
6
76°
59°
7
77°
59°
8
74°
58°
9
76°
59°
10
77°
59°
11
77°
58°
12
78°
60°
13
77°
59°
14
74°
57°
15
74°
58°
16
71°
58°
17
75°
57°
18
73°
58°
19
73°
57°
20
74°
55°
21
74°
57°
22
75°
57°
23
75°
53°
24
74°
57°
25
75°
55°
26
71°
56°
27
70°
52°
28
69°
54°
29
70°
55°
30
69°
52°
31
69°
54°
1
68°
54°
2
70°
52°
3
69°
51°
4
68°
51°
5
69°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Colchester
Colchester's August 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 51° and 60°. The average high for August is 73° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Colchester. See also: September | October | November.
