| March 2019 | Flood | Plankinton | $600,000 | Snow melt and heavy rainfall (measured 1.80 inches at White Lake) resulted in significant flooding of agricultural lands and inundation of county roads as Firesteel Creek near Mount Vernon (gage site MTVS2) reached moderate flood stage, cresting 6.44 feet above flood stage on March 22. |
| May 2007 | Tornado (EF3) | Plankinton | $300,000 | A tornado destroyed a hunting lodge and nearby outbuildings. The tornado also severely damaged a house, tossed a trailer 100 yards, and caused tree damage. |
| September 2019 | Flood | Plankinton | $25,000 | Firesteel Creek near Mount Vernon (gage site MTVS2) responded sharply to 5 to 9 inches of rainfall between September 10-12 (6.49 inches at White Lake, 5.68 inches near Stickney and 7.83 inches 5 miles west southwest of Mitchell) to reach the sixth highest crest on record at 7.17 feet above flood stage on September 13. Innumerable county and township roads were inundated and damaged, along with extensive agricultural flooding. |
| July 2017 | Hail | Plankinton | $10,000 | Hail, blown by 65 to 75 mph winds, caused considerable damage to vehicle windshields on Interstate 90. |
| July 2017 | Thunderstorm Wind | Plankinton | $10,000 | Broken windshields causing by wind blown hail along Interstate 90 between mile markers 305 and 308. |
| July 2009 | Hail | Plankinton | $10,000 | Large hail covered the ground and severely damaged crops. The amount of crop damage was not known. The hail also damaged windows on a home and vehicles, and dented vehicles. The hail was accompanied by damaging winds. |
| July 2009 | Thunderstorm Wind | Plankinton | $10,000 | Thunderstorm winds destroyed a hog barn, killing one sheep and injuring several others. The winds also blew off shingles from a barn and caused tree damage. The winds contributed to crop damage caused by accompanying large hail. |
| August 2004 | Thunderstorm Wind | Plankinton | $10,000 | Thunderstorm winds caused tree damage, including a large tree blown onto a trailer. |
| September 2012 | Thunderstorm Wind | Plankinton | $2,000 | Thunderstorm winds blew down trees, blew doors off a barn, and damaged railroad ties in fencing. |
| July 2001 | Lightning | Plankinton | $1,000 | Lightning started a fire that destroyed 15 large round hay bales. |
| July 2025 | Thunderstorm Wind | Plankinton | - | Thunderstorm winds downed several 3-to-4-inch diameter tree branches across Plankinton. |
| July 2025 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts were measured by a personal weather station. |
| July 2025 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts were measured by a Road Weather Information System sensor near Plankinton. |
| August 2025 | Thunderstorm Wind | Plankinton | - | A second distinct period of severe thunderstorm wind gusts were measured by a Road Weather Information System sensor 5 miles west of Plankinton. |
| August 2025 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts were measured by a Road Weather Information System sensor 5 miles west of Plankinton. |
| August 2025 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts were measured by a personal weather station 3 miles northeast of Plankinton. |
| July 2025 | Thunderstorm Wind | Plankinton | - | The emergency manager measured a thunderstorm wind gust of 70 mph. |
| June 2025 | Thunderstorm Wind | Plankinton | - | An extended period of severe wind gusts measured by South Dakota RWIS site near Plankinton. |
| June 2025 | Thunderstorm Wind | Plankinton | - | Winds were measured by a personal weather station, with a peak gust at 2041 CST. |
| July 2024 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts peaked at 64 mph at 155 am CST at the South Dakota Road Weather Information System site near Plankinton. |
| June 2024 | Flash Flood | Plankinton | - | Early evening rainfall was intense with 2 to 2.5 inches in a couple of hours, which resulted in widespread flash flooding in Plankinton. For a more comprehensive description of flood damage, please see other entries for areal and river flooding for Aurora County. |
| June 2024 | Flash Flood | Plankinton | - | Continued rainfall exacerbated flooding of roads with numerous barricaded and impassable. Several homes had flooded basements. For a more comprehensive description of flood damage, please see other entries for areal and river flooding for Aurora County. |
| June 2024 | Flood | Plankinton | - | Firesteel Creek near Mount Vernon rose above flood stage the evening of June 21st, cresting around 8.94 feet above flood stage (16.94 feet) on June 22nd. This crest is in the Major Stage. The creek then fell below flood stage on the afternoon of June 27th. For a more comprehensive description of flood damage, please see other entries for Aurora County. |
| July 2023 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts as high as 60 mph were measured by South Dakota Road Weather Information System site SD533 4 miles west of Plankinton. |
| June 2022 | Thunderstorm Wind | Plankinton | - | A thunderstorm wind gust of 65 mph was measured by a personal weather station. |
| May 2022 | Thunderstorm Wind | Plankinton | - | South Dakota Road Weather Information System site SD553 5 miles west of Plankinton measured a thunderstorm wind gust of 71 mph. |
| May 2022 | Thunderstorm Wind | Plankinton | - | Approximately one-half mile of power poles were snapped, with many laying across Old Highway 16 west of Plankinton. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| June 2022 | Thunderstorm Wind | Plankinton | - | Metal roof panels were blown off a pole barn by thunderstorm winds. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture. |
| May 2022 | Thunderstorm Wind | Plankinton | - | Very large trees were uprooted all around Plankinton. |
| May 2022 | Thunderstorm Wind | Plankinton | - | Massive damage was done to a chicken barn by thunderstorm wind gusts. |
| May 2022 | Thunderstorm Wind | Plankinton | - | Thunderstorm wind gusts flipped 12 vehicles on Interstate 90 between White Lake and Plankinton. |
| June 2022 | Thunderstorm Wind | Plankinton | - | A thunderstorm wind gust of 62 mph was measured by South Dakota Road Weather Information System site SD553 5 miles west of Plankinton. |
| May 2022 | Thunderstorm Wind | Plankinton | - | Numerous powerlines were downed by falling trees throughout Plankinton. |
| June 2020 | Flood | Plankinton | - | After rainfall June 8-9 which brought 2.65 inches 4 miles west of Plankinton, Firesteel Creek near Mount Vernon (gage site MTVS2) crested 2.62 feet above flood stage on June 13. Main impacts were limited to flooding of agricultural land. |
| March 2020 | Flood | Plankinton | - | Firesteel Creek near Mt. Vernon (gage site MTVS2) crested 3.4 feet above flood stage on March 4. Impacts were mainly minor flooding of agricultural lands near the creek. |
| June 2020 | Thunderstorm Wind | Plankinton | - | A personal weather station measured a wind gust to 59 mph. |
| July 2020 | Thunderstorm Wind | Plankinton | - | Personal weather station measured a wind gust to 59 mph. |
| July 2020 | Thunderstorm Wind | Plankinton | - | Wind gust to 62 mph measured by a personal weather station. |
| July 2020 | Thunderstorm Wind | Plankinton | - | South Dakota RWIS station SD553 measured a wind gust to 58 mph. |
| June 2019 | Thunderstorm Wind | Plankinton | - | Tree damage with power outages reported. |
| July 2019 | Thunderstorm Wind | Plankinton | - | Strong thunderstorm winds produced tree damage. |
| July 2019 | Thunderstorm Wind | Plankinton | - | Wind measured by RWIS station. |
| May 2019 | Flood | Plankinton | - | Firesteel Creek near Mount Vernon (gage site MTVS2) reached a peak of 3.39 feet above flood stage on May 24. The main impact was inundation of agricultural land and additional delays to spring planting in the flood plain. Minor flooding continued at the end of the month. |
| July 2019 | Thunderstorm Wind | Plankinton | - | Measured by RWIS station. |
| July 2019 | Thunderstorm Wind | Plankinton | - | Five to six inch diameter branches down across Plankinton. |
| April 2019 | Flood | Plankinton | - | Runoff from occasional precipitation in early April produced considerable flooding of agricultural lands along the river. Firesteel Creek near Mount Vernon (gage site MTVS2) crested at 0.55 feet above flood stage on April 18. |
| April 2018 | Flood | Plankinton | - | Snow melt and runoff from periods of heavier rainfall produced minor flooding which produced impacts to lowland agricultural areas. River levels reached 0.2 feet above flood stage on Firesteel Creek near Mt. Vernon (gage site MTVS2) on April 23. |
| March 2018 | Flood | Plankinton | - | Heavy rainfall along with snow melt caused minor flooding of lowland agricultural areas along Firesteel Creek. The river reached a crest of 3.0 feet above flood stage near Mount Vernon (gage site MTVS2) on March 17. |
| August 2018 | Hail | Plankinton | - | Picture of hail received through social media. |
| June 2017 | Hail | Plankinton | - | Winds of 50 to 60 mph were also reported. |
| July 2017 | Thunderstorm Wind | Plankinton | - | A few tree limbs downed. |
| June 2010 | Flash Flood | Plankinton | - | Heavy rain caused flash flooding of roads in the town of Plankinton. The rain also caused small creeks in the area to rise well out of their banks. |
| June 2009 | Hail | Plankinton | - | Large hail caused an unknown amount of crop damage. |
| July 2009 | Hail | Plankinton | - | Large hail whitened the ground. |
| June 2008 | Thunderstorm Wind | Plankinton | - | Thunderstorm winds caused tree damage, including up to 4 inch diameter branches blown down. |
| June 2007 | Hail | Plankinton | - | Small hail was accompanied by a few stones of penny size. |
| April 2007 | Tornado (EF0) | Plankinton | - | A tornado appeared to have intermittent surface contact during its path. There was no damage reported. |
| July 2003 | Hail | Plankinton | - | Large hail damaged crops. The amount of crop damage was not known. |
| July 2025 | Hail | Plankinton | - | no account filed |
| April 2021 | Hail | Plankinton | - | no account filed |