S
M
T
W
T
F
S
30
70°
50°
31
68°
51°
1
66°
54°
2
67°
53°
3
64°
53°
4
64°
52°
5
66°
53°
6
66°
53°
7
65°
51°
8
63°
52°
9
66°
53°
10
67°
51°
11
67°
52°
12
66°
53°
13
62°
53°
14
62°
48°
15
63°
47°
16
61°
47°
17
61°
48°
18
62°
49°
19
61°
49°
20
60°
47°
21
61°
49°
22
62°
51°
23
62°
50°
24
60°
49°
25
60°
49°
26
60°
50°
27
63°
52°
28
63°
51°
29
64°
52°
30
Hist. Avg.
58°
47°
1
Hist. Avg.
58°
47°
2
Hist. Avg.
58°
46°
3
Hist. Avg.
58°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Millisle
Millisle's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 47° and 54°. The average high for September is 64° with an average low of 51°. 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 Millisle. See also: October | November | December.
