S
M
T
W
T
F
S
26
84°
66°
27
88°
67°
28
89°
71°
29
87°
67°
30
84°
66°
31
85°
67°
1
87°
66°
2
85°
66°
3
87°
67°
4
87°
66°
5
88°
70°
6
87°
69°
7
86°
71°
8
85°
70°
9
86°
71°
10
86°
71°
11
87°
70°
12
86°
71°
13
86°
71°
14
87°
70°
15
85°
71°
16
85°
70°
17
84°
70°
18
85°
69°
19
85°
69°
20
84°
70°
21
85°
70°
22
84°
69°
23
84°
70°
24
83°
68°
25
84°
66°
26
88°
70°
27
89°
70°
28
88°
69°
29
85°
70°
30
82°
68°
31
82°
64°
1
83°
66°
2
84°
68°
3
87°
68°
4
88°
68°
5
88°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chapel Hill
Chapel Hill's August 2026 forecast shows daily high temperatures ranging from 82° to 89°, with overnight lows between 64° and 71°. The average high for August is 86° with an average low of 69°. 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 Chapel Hill. See also: September | October | November.