S
M
T
W
T
F
S
26
79°
57°
27
75°
54°
28
74°
54°
29
75°
55°
30
75°
56°
31
74°
54°
1
75°
57°
2
75°
56°
3
74°
57°
4
75°
60°
5
75°
55°
6
78°
56°
7
80°
57°
8
79°
59°
9
74°
56°
10
77°
55°
11
76°
56°
12
74°
56°
13
74°
57°
14
73°
58°
15
72°
55°
16
73°
56°
17
73°
54°
18
75°
56°
19
79°
59°
20
80°
59°
21
80°
58°
22
79°
59°
23
78°
56°
24
78°
53°
25
76°
52°
26
72°
57°
27
71°
54°
28
75°
56°
29
74°
58°
30
77°
59°
31
78°
58°
1
77°
51°
2
75°
50°
3
Hist. Avg.
80°
55°
4
Hist. Avg.
79°
55°
5
Hist. Avg.
79°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Colebrook
Colebrook's August 2026 forecast shows daily high temperatures ranging from 71° to 80°, with overnight lows between 50° and 60°. The average high for August is 76° with an average low of 56°. 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 Colebrook. See also: September | October | November.