S
M
T
W
T
F
S
26
86°
67°
27
90°
72°
28
91°
72°
29
92°
71°
30
87°
71°
31
88°
72°
1
87°
71°
2
88°
72°
3
90°
72°
4
89°
71°
5
91°
72°
6
90°
71°
7
91°
72°
8
90°
71°
9
91°
72°
10
92°
72°
11
88°
71°
12
85°
71°
13
86°
70°
14
88°
71°
15
85°
68°
16
82°
67°
17
83°
70°
18
83°
71°
19
84°
71°
20
85°
70°
21
86°
70°
22
85°
69°
23
86°
69°
24
89°
69°
25
90°
69°
26
90°
67°
27
88°
68°
28
89°
69°
29
84°
68°
30
88°
68°
31
84°
66°
1
82°
67°
2
83°
68°
3
87°
69°
4
86°
69°
5
82°
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 92°, with overnight lows between 66° and 72°. The average high for August is 87° with an average low of 70°. 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.