S
M
T
W
T
F
S
30
83°
58°
31
75°
57°
1
68°
60°
2
70°
62°
3
73°
63°
4
83°
64°
5
72°
60°
6
76°
55°
7
83°
53°
8
78°
57°
9
71°
55°
10
87°
67°
11
76°
54°
12
73°
47°
13
67°
60°
14
73°
49°
15
68°
49°
16
78°
59°
17
74°
61°
18
76°
45°
19
66°
49°
20
65°
51°
21
70°
51°
22
64°
46°
23
65°
44°
24
64°
50°
25
69°
52°
26
69°
47°
27
65°
46°
28
63°
43°
29
72°
50°
30
63°
47°
1
63°
49°
2
64°
49°
3
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Durham
Durham's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 43° and 61°. The average high for September is 68° with an average low of 49°. 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 Durham. See also: October | November | December.