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