As of 21:10 MDT

Green Valley, SD weather in May

79°

Green Valley, Saturday, 8 August, 21:10

Clear. Feels like 78°. High 98°, low 64°.

Pressure29.88 inHg

Wind10.5 mph NW

Humidity36%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

In May, Green Valley, SD averages a high of 66.7° and a low of 45.7°. About 3.4 inches of precipitation fall over the month (11 wet days). The record high is 95.4° (1969) and the record low 15.8° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	59.4°	38.8°	32%	81.5° (1987)	23.7° (1984)
2	60.6°	37.8°	20%	82.6° (1981)	17.1° (1967)
3	64°	39.4°	25%	87.6° (1985)	15.8° (1967)
4	64.9°	41.7°	27%	85.5° (1966)	19.2° (1967)
5	65.1°	42.6°	25%	91.2° (2004)	19.4° (1967)
6	64.6°	43.7°	32%	83.3° (2017)	26.8° (1967)
7	64°	42.8°	38%	86.2° (2017)	33.1° (1971)
8	62.6°	42.8°	42%	86.7° (1985)	27.1° (2010)
9	64.9°	43.3°	43%	89.8° (1962)	31.1° (1968)
10	63.7°	43.7°	47%	85.6° (2025)	28.8° (1990)
11	62.8°	42.4°	42%	91.6° (2025)	24.1° (1979)
12	62.8°	42.8°	38%	91.6° (2025)	25° (2015)
13	65.7°	43.5°	35%	90.3° (2007)	27.5° (1983)
14	66.6°	44.8°	25%	86° (1976)	25.5° (1983)
15	68.2°	45.9°	37%	88.3° (1987)	31.6° (1983)
16	69.3°	48°	30%	89.1° (2012)	34.3° (2009)
17	68.7°	47.3°	37%	89.2° (1988)	33.8° (1986)
18	69.3°	47.7°	25%	88.5° (1992)	34° (1983)
19	67.6°	48°	35%	94.8° (2009)	32.4° (1971)
20	67.8°	47.1°	37%	89.6° (1964)	29.5° (2003)
21	69.1°	47.8°	45%	90.5° (1966)	30.9° (1963)
22	68.9°	48.9°	42%	93.9° (2012)	30.4° (2022)
23	68°	48.4°	40%	84.6° (2018)	32.2° (2019)
24	68.4°	48.6°	37%	86.4° (1967)	32.9° (2002)
25	68.5°	48.2°	40%	83.7° (1966)	37.6° (2002)
26	69.4°	48.2°	35%	91.8° (2006)	34.3° (1975)
27	70.7°	50°	35%	95.4° (1969)	35.1° (1965)
28	71.4°	50.9°	28%	89.1° (2010)	34.5° (1965)
29	71.1°	50.4°	35%	90.9° (2003)	38.3° (1982)
30	69.4°	50.7°	47%	92.3° (1969)	39.6° (1975)
31	70°	49.8°	40%	87.6° (1960)	35.6° (1982)