S
M
T
W
T
F
S
26
43°
37°
27
48°
36°
28
45°
33°
29
45°
30°
30
43°
30°
1
40°
33°
2
48°
34°
3
45°
37°
4
45°
38°
5
47°
36°
6
49°
36°
7
46°
38°
8
45°
34°
9
46°
36°
10
45°
38°
11
44°
37°
12
46°
36°
13
45°
38°
14
48°
38°
15
50°
35°
16
49°
39°
17
45°
40°
18
47°
39°
19
45°
39°
20
54°
37°
21
47°
37°
22
44°
36°
23
47°
34°
24
54°
39°
25
55°
39°
26
45°
40°
27
48°
38°
28
50°
36°
29
53°
40°
30
48°
39°
31
50°
40°
1
51°
39°
2
54°
40°
3
53°
41°
4
57°
40°
5
58°
43°
6
53°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Seward
Seward's May 2026 forecast shows daily high temperatures ranging from 45° to 58°, with overnight lows between 34° and 43°. The average high for May is 52° with an average low of 39°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Seward. See also: June | July | August.