S
M
T
W
T
F
S
30
66°
51°
31
56°
43°
1
66°
46°
2
66°
47°
3
63°
46°
4
60°
50°
5
61°
49°
6
60°
50°
7
59°
52°
8
57°
47°
9
58°
46°
10
57°
45°
11
57°
45°
12
56°
44°
13
54°
44°
14
54°
45°
15
52°
40°
16
51°
41°
17
51°
41°
18
52°
42°
19
52°
43°
20
51°
42°
21
51°
40°
22
50°
39°
23
50°
41°
24
51°
38°
25
48°
37°
26
48°
36°
27
47°
38°
28
47°
37°
29
48°
35°
30
46°
35°
1
47°
39°
2
47°
41°
3
48°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Seward
Seward's September 2026 forecast shows daily high temperatures ranging from 46° to 66°, with overnight lows between 35° and 52°. The average high for September is 53° with an average low of 42°. 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 Seward. See also: October | November | December.
