S
M
T
W
T
F
S
26
84°
60°
27
85°
64°
28
77°
60°
29
79°
54°
30
85°
52°
31
84°
60°
1
80°
67°
2
N/A
3
80°
50°
4
83°
58°
5
84°
64°
6
82°
66°
7
80°
63°
8
85°
64°
9
86°
67°
10
85°
64°
11
85°
61°
12
79°
60°
13
78°
62°
14
80°
60°
15
79°
62°
16
80°
63°
17
84°
67°
18
83°
67°
19
85°
66°
20
79°
66°
21
79°
65°
22
83°
67°
23
84°
67°
24
82°
66°
25
80°
66°
26
81°
65°
27
82°
66°
28
79°
65°
29
79°
64°
30
78°
65°
31
80°
64°
1
81°
63°
2
73°
61°
3
73°
62°
4
74°
63°
5
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Chatham
Chatham's August 2026 forecast shows daily high temperatures ranging from 73° to 86°, with overnight lows between 50° and 67°. The average high for August is 81° with an average low of 64°. 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 Chatham. See also: September | October | November.