S
M
T
W
T
F
S
29
35°
22°
30
35°
26°
1
34°
18°
2
35°
16°
3
31°
25°
4
33°
27°
5
36°
28°
6
38°
28°
7
39°
25°
8
38°
23°
9
34°
16°
10
32°
15°
11
30°
19°
12
30°
10°
13
29°
9°
14
23°
15°
15
27°
18°
16
29°
16°
17
32°
21°
18
34°
24°
19
35°
24°
20
37°
20°
21
38°
17°
22
32°
20°
23
35°
21°
24
33°
13°
25
34°
10°
26
27°
6°
27
23°
2°
28
20°
7°
29
18°
-1°
30
21°
0°
31
14°
2°
1
15°
14°
2
20°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Nelson
Nelson's December 2026 forecast shows daily high temperatures ranging from 14° to 39°, with overnight lows between -1° and 28°. The average high for December is 30° with an average low of 16°. 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 Nelson. See also: January | February | March.
