As of 14:25 MDT

Porcupine, SD weather in May

91°

Porcupine, Sunday, 9 August, 14:25

Overcast. Feels like 89°. High 93°, low 66°.

Pressure29.77 inHg

Wind12 mph E

Humidity27%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

In May, Porcupine, SD averages a high of 67.2° and a low of 46.8°. About 3.6 inches of precipitation fall over the month (12 wet days). The record high is 95.9° (2012) and the record low 9.9° (1967). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	59.2°	39.4°	43%	83.1° (1965)	24.1° (1967)
2	60.4°	39°	30%	82.9° (1981)	18.7° (1967)
3	64.2°	40.8°	28%	85.6° (1985)	9.9° (1967)
4	65.3°	43.2°	30%	84.9° (2000)	23.5° (1967)
5	65.5°	44.1°	28%	92.8° (2004)	30° (1991)
6	65.7°	44.8°	37%	83.8° (2017)	28.4° (1991)
7	64.9°	44.4°	43%	85.8° (1963)	33.8° (1972)
8	63.7°	44.1°	35%	87.8° (1985)	27° (2010)
9	65.7°	43.7°	37%	90.7° (1962)	29.5° (2002)
10	64.2°	44.6°	42%	85.5° (2012)	28.8° (1979)
11	63°	43.3°	47%	92.7° (1962)	23.5° (1979)
12	63.3°	43.7°	38%	90.3° (2025)	24.8° (2015)
13	66.2°	44.8°	40%	90.9° (2007)	32.5° (1983)
14	66.9°	46°	25%	85.8° (1991)	28.6° (1983)
15	69.1°	47.3°	33%	84.7° (1987)	32° (2014)
16	69.6°	48.7°	37%	88.3° (2012)	35.2° (1983)
17	69.1°	48.7°	28%	88.7° (1964)	34.5° (1969)
18	70.2°	49.3°	35%	88° (2012)	33.6° (1968)
19	68.5°	48.9°	37%	95.2° (2009)	33.3° (1971)
20	68.2°	48.2°	43%	88.5° (2005)	31.1° (1968)
21	69.3°	49.5°	40%	88.9° (1966)	31.5° (1963)
22	68.7°	50.4°	53%	95.9° (2012)	32.5° (2019)
23	68.7°	49.5°	47%	85.6° (1967)	33.6° (2019)
24	68.9°	49.5°	45%	90.5° (1967)	34.5° (2002)
25	69.1°	49.3°	35%	86.2° (1985)	37.2° (1971)
26	70°	49.5°	38%	92.1° (1969)	34.5° (1992)
27	70.9°	51.6°	45%	95.4° (1969)	33.4° (1965)
28	71.8°	52°	43%	88.9° (2010)	34° (1965)
29	72°	51.4°	38%	89.8° (2003)	40.3° (1997)
30	69.6°	52°	45%	93.6° (1969)	38.1° (2015)
31	70.7°	50.7°	37%	87.1° (2020)	37.9° (1982)