S
M
T
W
T
F
S
28
87°
68°
29
87°
71°
30
89°
68°
1
97°
71°
2
100°
72°
3
100°
72°
4
99°
73°
5
95°
67°
6
91°
67°
7
83°
66°
8
81°
67°
9
85°
66°
10
87°
66°
11
87°
67°
12
89°
65°
13
85°
67°
14
86°
63°
15
82°
63°
16
82°
64°
17
83°
63°
18
85°
65°
19
88°
66°
20
88°
67°
21
87°
68°
22
88°
68°
23
88°
67°
24
85°
68°
25
86°
67°
26
88°
68°
27
86°
68°
28
83°
67°
29
83°
68°
30
84°
63°
31
82°
62°
1
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Chatham
Chatham's July 2026 forecast shows daily high temperatures ranging from 81° to 100°, with overnight lows between 62° and 73°. The average high for July is 87° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Chatham. See also: August | September | October.