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