As of 00:23 MDT

Union Center, SD weather in May

57°

Union Center, Sunday, 11 October, 00:23

Overcast. Feels like 55°. High 64°, low 49°.

Pressure29.68 inHg

Wind15.3 mph NE

Humidity54%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

In May, Union Center, SD averages a high of 66.8° and a low of 46.2°. About 3.1 inches of precipitation fall over the month (11 wet days). The record high is 97.5° (1969) and the record low 12.4° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	59.4°	38.8°	30%	81.3° (1987)	17.8° (1989)
2	60.4°	38.3°	23%	80.2° (1981)	21.2° (1967)
3	64°	39.9°	25%	89.1° (1985)	18.1° (1967)
4	64.8°	41.9°	23%	85.5° (1966)	12.4° (1967)
5	65.1°	42.8°	20%	89.2° (2004)	17.2° (1967)
6	64.4°	43.9°	33%	85.1° (2017)	22.3° (1967)
7	63.5°	43.2°	45%	90.9° (2017)	32.4° (1984)
8	63°	43°	45%	85.5° (1985)	27° (2010)
9	64.6°	43.3°	40%	86.4° (1962)	28.6° (1968)
10	63.5°	43.7°	37%	87.4° (2025)	28.6° (1990)
11	63°	43.5°	37%	95.7° (2025)	27.7° (1979)
12	63°	43.5°	38%	93.4° (2025)	32° (2015)
13	66°	44.1°	35%	89.8° (2013)	30.2° (2005)
14	66.6°	45.3°	20%	84.9° (1976)	25.5° (1983)
15	68.2°	46.4°	35%	88.5° (1987)	30° (2014)
16	69.4°	48.2°	30%	89.1° (2012)	32.5° (2009)
17	69.3°	48°	38%	89.8° (1988)	33.3° (1986)
18	69.1°	48.2°	22%	89.1° (1992)	34° (1968)
19	67.6°	48°	35%	90.9° (2009)	34.2° (2015)
20	68°	47.3°	28%	90° (1964)	29.7° (2003)
21	69.3°	48.6°	40%	88.3° (1966)	32.2° (2022)
22	69.1°	49.5°	38%	91.4° (2006)	30.6° (2022)
23	68.2°	48.7°	40%	84.4° (1980)	36.3° (2002)
24	68.7°	49.3°	45%	86.2° (1985)	30.9° (2002)
25	68.7°	49.1°	28%	86° (1985)	37.6° (1971)
26	69.8°	49.3°	32%	92.3° (2006)	35.8° (1984)
27	71.2°	51.1°	45%	97.5° (1969)	33.1° (1965)
28	72°	51.6°	23%	89.6° (2010)	31.8° (1965)
29	71.2°	51.1°	30%	92.1° (2003)	40.5° (1997)
30	69.6°	51.1°	50%	89.8° (1969)	38.5° (2015)
31	69.8°	50.5°	43%	86° (2020)	37.4° (1982)