As of 11:35 MDT

New Underwood, SD weather in December

83°

New Underwood, Sunday, 9 August, 11:35

Overcast. Feels like 83°. High 93°, low 65°.

Pressure29.85 inHg

Wind9 mph E

Humidity45%

Visibility6.2 mi

Dew point60°

See detailed hourly forecast

In December, New Underwood, SD averages a high of 35.4° and a low of 17.5°. About 0.7 inches of precipitation fall over the month (4 wet days). The record high is 70° (2021) and the record low -36.6° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	39.4°	21.9°	18%	70° (2021)	-8.9° (1985)
2	39°	21.2°	27%	69.6° (2021)	-22.9° (1985)
3	38.8°	21.2°	10%	61° (2012)	-0.6° (1996)
4	40.6°	21.2°	13%	67.5° (1965)	-3.5° (1972)
5	36.5°	19.8°	13%	64.2° (1987)	-11.2° (1972)
6	36.3°	18.3°	5%	61.2° (2023)	-31.5° (1972)
7	36.9°	18.9°	13%	62.6° (2024)	-18° (2013)
8	36.9°	18.5°	12%	63.5° (2020)	-24° (1972)
9	38.1°	18.5°	13%	64° (2015)	-19.5° (1972)
10	37.6°	19.2°	12%	61.5° (1987)	-29.4° (1972)
11	37.9°	19.2°	5%	64.2° (2004)	-16.1° (1972)
12	37.4°	18.7°	12%	61° (2014)	-17.1° (2000)
13	36.1°	18.7°	15%	61.2° (1988)	-11° (1985)
14	36.3°	17.6°	17%	58.1° (1997)	-16.4° (1989)
15	35.8°	18.1°	13%	57° (1980)	-27.6° (1989)
16	36°	18.5°	17%	60.8° (1980)	-17.9° (1964)
17	35.8°	18°	15%	61.2° (2025)	-24.5° (1964)
18	34.5°	16.5°	8%	61.9° (1979)	-28.3° (2016)
19	34.3°	15.4°	8%	60.8° (2025)	-14.6° (1989)
20	33.1°	16°	10%	53.6° (1966)	-13.9° (1983)
21	33.4°	16°	18%	54.7° (1994)	-29.6° (1983)
22	32.7°	16.7°	15%	59.9° (2020)	-36.6° (1989)
23	32.7°	14.5°	18%	57.2° (1964)	-28.7° (1983)
24	32.7°	15.1°	10%	57.2° (1963)	-26.5° (1983)
25	35.4°	16.2°	13%	63.1° (2025)	-23.4° (1983)
26	34.9°	16.9°	17%	58.8° (2025)	-23.8° (1996)
27	34.2°	16.3°	17%	62.6° (1980)	-8.7° (1988)
28	33.3°	15.6°	10%	57.7° (1999)	-7.6° (1990)
29	30.6°	13.8°	17%	59.2° (1965)	-21.8° (1990)
30	31.3°	13.1°	18%	52.9° (1980)	-28.5° (1990)
31	29.8°	11.7°	18%	58.6° (1963)	-19.5° (1968)