S
M
T
W
T
F
S
30
88°
68°
31
84°
66°
1
82°
67°
2
83°
68°
3
87°
69°
4
86°
69°
5
82°
68°
6
83°
68°
7
87°
67°
8
82°
62°
9
83°
60°
10
81°
64°
11
81°
61°
12
86°
60°
13
85°
66°
14
85°
61°
15
81°
59°
16
78°
58°
17
79°
59°
18
81°
61°
19
84°
60°
20
84°
62°
21
83°
64°
22
84°
62°
23
83°
57°
24
79°
56°
25
82°
55°
26
80°
61°
27
81°
61°
28
81°
62°
29
82°
61°
30
81°
56°
1
76°
60°
2
80°
61°
3
81°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chapel Hill
Chapel Hill's September 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 55° and 69°. The average high for September is 82° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Chapel Hill. See also: October | November | December.
