S
M
T
W
T
F
S
30
61°
57°
31
72°
54°
1
68°
52°
2
59°
48°
3
64°
57°
4
66°
55°
5
66°
52°
6
68°
55°
7
63°
52°
8
64°
54°
9
59°
46°
10
61°
45°
11
64°
48°
12
70°
52°
13
66°
52°
14
68°
54°
15
68°
54°
16
66°
50°
17
61°
50°
18
59°
52°
19
63°
52°
20
64°
52°
21
72°
52°
22
72°
57°
23
63°
48°
24
63°
43°
25
61°
48°
26
64°
48°
27
57°
45°
28
61°
43°
29
59°
39°
30
66°
52°
1
N/A
2
64°
47°
3
59°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dundee
Dundee's September 2026 forecast shows daily high temperatures ranging from 59° to 64°, with overnight lows between 47° and 49°. The average high for September is 62° 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 Dundee. See also: October | November | December.