S
M
T
W
T
F
S
30
72°
66°
31
79°
66°
1
82°
74°
2
88°
69°
3
81°
69°
4
76°
68°
5
75°
57°
6
75°
53°
7
75°
47°
8
77°
49°
9
84°
72°
10
76°
67°
11
72°
50°
12
80°
49°
13
80°
65°
14
66°
47°
15
80°
45°
16
75°
66°
17
76°
66°
18
72°
60°
19
67°
57°
20
68°
53°
21
65°
47°
22
67°
45°
23
71°
44°
24
68°
39°
25
68°
36°
26
71°
43°
27
69°
41°
28
64°
57°
29
71°
54°
30
76°
51°
1
81°
62°
2
74°
56°
3
64°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dunkirk
Dunkirk's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Dunkirk. See also: October | November | December.
