S
M
T
W
T
F
S
30
73°
50°
31
71°
51°
1
72°
49°
2
72°
50°
3
75°
54°
4
81°
56°
5
74°
55°
6
78°
53°
7
78°
52°
8
73°
55°
9
72°
47°
10
72°
50°
11
75°
52°
12
75°
53°
13
71°
47°
14
73°
56°
15
77°
56°
16
79°
47°
17
77°
43°
18
69°
41°
19
66°
41°
20
66°
43°
21
67°
43°
22
74°
53°
23
74°
51°
24
75°
42°
25
70°
39°
26
67°
40°
27
65°
40°
28
64°
39°
29
63°
40°
30
66°
38°
1
Hist. Avg.
68°
42°
2
Hist. Avg.
68°
42°
3
Hist. Avg.
67°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Raleigh
Raleigh's September 2026 forecast shows daily high temperatures ranging from 63° to 81°, with overnight lows between 38° and 56°. The average high for September is 72° with an average low of 48°. 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 Raleigh. See also: October | November | December.