S
M
T
W
T
F
S
30
84°
57°
31
84°
60°
1
83°
61°
2
83°
59°
3
82°
52°
4
76°
51°
5
75°
52°
6
78°
59°
7
82°
59°
8
82°
58°
9
75°
53°
10
76°
58°
11
80°
57°
12
81°
58°
13
81°
58°
14
80°
57°
15
81°
56°
16
79°
56°
17
74°
49°
18
78°
48°
19
70°
46°
20
70°
45°
21
68°
44°
22
69°
52°
23
70°
47°
24
72°
45°
25
69°
50°
26
72°
52°
27
71°
51°
28
75°
51°
29
74°
50°
30
74°
49°
1
69°
50°
2
73°
49°
3
66°
43°
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 66° to 84°, with overnight lows between 43° and 61°. The average high for September is 76° with an average low of 53°. 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.
