S
M
T
W
T
F
S
26
82°
65°
27
88°
68°
28
88°
68°
29
89°
67°
30
89°
64°
31
90°
61°
1
88°
66°
2
87°
75°
3
89°
73°
4
85°
71°
5
86°
72°
6
90°
71°
7
90°
68°
8
90°
70°
9
92°
69°
10
93°
71°
11
93°
72°
12
90°
70°
13
93°
70°
14
97°
74°
15
90°
74°
16
92°
75°
17
96°
74°
18
95°
72°
19
94°
71°
20
95°
73°
21
85°
72°
22
85°
69°
23
91°
65°
24
85°
65°
25
86°
67°
26
84°
68°
27
82°
66°
28
85°
64°
29
82°
65°
30
84°
64°
31
86°
65°
1
87°
67°
2
86°
66°
3
81°
66°
4
88°
70°
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 81° to 95°, with overnight lows between 64° and 73°. The average high for August is 86° 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 August weather will actually feel in Chapel Hill. See also: September | October | November.