S
M
T
W
T
F
S
29
37°
28°
30
29°
19°
1
29°
17°
2
30°
19°
3
27°
18°
4
25°
18°
5
27°
19°
6
29°
26°
7
29°
22°
8
31°
23°
9
34°
19°
10
34°
15°
11
27°
16°
12
26°
21°
13
31°
23°
14
29°
29°
15
39°
29°
16
37°
31°
17
37°
32°
18
40°
23°
19
41°
28°
20
35°
28°
21
34°
16°
22
32°
16°
23
27°
23°
24
29°
29°
25
37°
28°
26
38°
17°
27
38°
15°
28
27°
18°
29
25°
17°
30
26°
17°
31
26°
16°
1
26°
16°
2
25°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Seward
Seward's December 2026 forecast shows daily high temperatures ranging from 25° to 41°, with overnight lows between 14° and 32°. The average high for December is 31° with an average low of 21°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Seward. See also: January | February | March.
