S
M
T
W
T
F
S
29
49°
33°
30
44°
33°
1
46°
35°
2
46°
35°
3
50°
30°
4
49°
28°
5
36°
27°
6
36°
28°
7
37°
24°
8
35°
24°
9
37°
27°
10
36°
32°
11
43°
32°
12
44°
31°
13
40°
27°
14
46°
31°
15
44°
32°
16
47°
31°
17
43°
31°
18
32°
20°
19
32°
21°
20
39°
25°
21
38°
22°
22
39°
24°
23
38°
23°
24
40°
23°
25
38°
25°
26
38°
29°
27
41°
25°
28
41°
17°
29
39°
14°
30
31°
13°
31
28°
17°
1
34°
17°
2
32°
14°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Boardman
Boardman's December 2026 forecast shows daily high temperatures ranging from 28° to 50°, with overnight lows between 13° and 35°. The average high for December is 40° with an average low of 26°. 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 Boardman. See also: January | February | March.