S
M
T
W
T
F
S
30
70°
49°
31
76°
53°
1
78°
44°
2
75°
45°
3
69°
44°
4
70°
46°
5
71°
53°
6
75°
51°
7
76°
46°
8
69°
50°
9
68°
51°
10
70°
51°
11
70°
49°
12
72°
49°
13
70°
48°
14
66°
43°
15
66°
42°
16
67°
41°
17
65°
43°
18
65°
48°
19
70°
48°
20
69°
49°
21
70°
45°
22
64°
39°
23
64°
45°
24
63°
48°
25
69°
41°
26
67°
38°
27
Hist. Avg.
70°
48°
28
Hist. Avg.
69°
48°
29
Hist. Avg.
69°
47°
30
Hist. Avg.
68°
47°
1
Hist. Avg.
68°
46°
2
Hist. Avg.
68°
46°
3
Hist. Avg.
67°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in South Durham
South Durham's September 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 38° and 53°. The average high for September is 69° with an average low of 46°. 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 South Durham. See also: October | November | December.