S
M
T
W
T
F
S
30
70°
52°
31
71°
52°
1
70°
51°
2
72°
52°
3
74°
52°
4
69°
51°
5
69°
49°
6
70°
48°
7
69°
47°
8
71°
49°
9
70°
48°
10
72°
46°
11
74°
46°
12
70°
49°
13
71°
53°
14
69°
46°
15
67°
47°
16
Hist. Avg.
85°
53°
17
Hist. Avg.
84°
53°
18
Hist. Avg.
84°
53°
19
Hist. Avg.
84°
53°
20
Hist. Avg.
84°
53°
21
Hist. Avg.
84°
52°
22
Hist. Avg.
83°
52°
23
Hist. Avg.
83°
52°
24
Hist. Avg.
83°
52°
25
Hist. Avg.
83°
52°
26
Hist. Avg.
83°
52°
27
Hist. Avg.
82°
52°
28
Hist. Avg.
82°
52°
29
Hist. Avg.
82°
52°
30
Hist. Avg.
82°
51°
1
Hist. Avg.
81°
51°
2
Hist. Avg.
81°
51°
3
Hist. Avg.
81°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Duncans Mills
Duncans Mills's September 2026 forecast shows daily high temperatures ranging from 67° to 74°, with overnight lows between 46° and 53°. The average high for September is 70° with an average low of 49°. 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 Duncans Mills. See also: October | November | December.
