S
M
T
W
T
F
S
30
64°
59°
31
68°
57°
1
73°
57°
2
70°
55°
3
68°
50°
4
63°
50°
5
N/A
6
69°
53°
7
67°
54°
8
66°
52°
9
65°
49°
10
61°
50°
11
63°
49°
12
62°
47°
13
63°
48°
14
63°
48°
15
63°
49°
16
61°
49°
17
62°
48°
18
64°
49°
19
62°
49°
20
61°
48°
21
57°
48°
22
60°
47°
23
62°
48°
24
62°
49°
25
61°
48°
26
61°
46°
27
59°
42°
28
55°
43°
29
57°
46°
30
55°
46°
1
55°
44°
2
58°
46°
3
59°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Norrköping
Norrköping's September 2026 forecast shows daily high temperatures ranging from 55° to 69°, with overnight lows between 42° and 54°. The average high for September is 61° with an average low of 48°. 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 Norrköping. See also: October | November | December.
