S
M
T
W
T
F
S
30
73°
50°
31
73°
50°
1
71°
51°
2
70°
50°
3
72°
51°
4
72°
50°
5
70°
50°
6
71°
53°
7
70°
53°
8
70°
52°
9
71°
51°
10
71°
51°
11
69°
49°
12
68°
51°
13
69°
53°
14
73°
50°
15
74°
54°
16
76°
53°
17
75°
54°
18
75°
54°
19
68°
46°
20
73°
51°
21
66°
42°
22
64°
44°
23
Hist. Avg.
69°
48°
24
Hist. Avg.
68°
47°
25
Hist. Avg.
68°
47°
26
Hist. Avg.
68°
46°
27
Hist. Avg.
67°
46°
28
Hist. Avg.
67°
46°
29
Hist. Avg.
66°
45°
30
Hist. Avg.
66°
45°
1
Hist. Avg.
65°
44°
2
Hist. Avg.
65°
44°
3
Hist. Avg.
64°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in De Pere
De Pere's September 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 42° and 54°. The average high for September is 71° 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 De Pere. See also: October | November | December.
