| May 2011 | Flood | Commerce | $1,500,000 | Major flooding continued from April on the Mississippi River. At the Thebes, Illinois river gage, the flood crest of 45.52 feet on the night of May 2 was the second highest crest on record. The record crest was 45.91 feet in May of 1995. The activation of the New Madrid Floodway by the U.S. Army Corps of Engineers spared the county from an even higher crest. With the detonation of the Mississippi River levee at Birds Point, Missouri, the river dropped suddenly. A combination of Mississippi River backwater and headwaters from the Whitewater River caused flooding as far inland as Chaffee. In Chaffee, a nursing home was sandbagged after its parking lot flooded. Many homes and other structures along Highway 77 were surrounded by water. At least one street was closed in Chaffee. In an area around Sikeston, sixty homes were threatened by backwater from the St. Johns Bayou. Many school districts were closed. U.S. Highway 62 was closed east of Interstate 55. A couple dozen homes were threatened in Commerce, causing a partial evacuation of the town. The breach of a private agricultural levee flooded thousands of acres of farmland and flooded even more of Commerce. A large portion of Route EE was closed. |
| May 2017 | Flood | Commerce | $250,000 | Major flooding occurred along the Mississippi River early in the month. At the Thebes, IL river gage, the river crested at 43.18 feet on the 6th. Flood stage is 33 feet. This flood crest was about two feet below the crest during the historic 2011 flood. There was extensive flooding of low-lying agricultural land and county roads. A couple dozen homes were threatened in Commerce, causing a partial evacuation of the town. A large portion of Route EE was closed. Three homes on Scott County Road 308 alongside the Mississippi River were underwater. Thousands of acres of cropland were flooded. The primary effect on residents near the river was difficult access due to flooded roads. Flood risk reduction measures that were installed after the massive flood of 2011 helped mitigate damage. Personnel from the U.S. Army Corps of Engineers conducted daily inspections of levees for seepage and other problems. |
| June 1998 | Thunderstorm Wind | Commerce | $100,000 | Thunderstorms moved slowly south across the county, producing spotty but significant wind damage along their paths. In the community of Commerce, numerous trees and power lines were blown down in the north portion of town. One tree fell on a two-story home, and several trees were across roadways. A mobile home was moved several feet. In and around the community of Lusk, several large trees were down. One tree narrowly missed a house. Another fell across power lines. A farmer in this area recorded a wind gust to 68 MPH. |
| June 2013 | Flood | Commerce | $50,000 | Major flooding occurred along the Mississippi River. There was extensive flooding of low-lying farm fields, and many county roads were closed. |
| April 2011 | Flood | Commerce | $50,000 | Major flooding was in progress on the Mississippi River by the end of the month. The river continued rising into early May. A combination of Mississippi River backwater and headwaters from the Whitewater River caused flooding as far inland as Chaffee. A couple dozen homes were threatened in Commerce. Sandbagging was done around a home on Route EE. A large portion of Route EE was closed. Sixty homes were threatened by backwater in an area west of Sikeston. Many school districts were closed. In Chaffee, a nursing home was sandbagged after its parking lot flooded. Many homes and other structures along Highway 77 were surrounded by water. At least one street was closed in Chaffee. |
| June 2015 | Flood | Commerce | $40,000 | Major flooding of the Mississippi River occurred. Three homes on Scott County Road 308 alongside the Mississippi River were underwater, with up to a foot of water covering the first floor. Over 100,000 acres of fields were flooded, including lots of cropland. The primary effect on residents near the river was difficult access due to flooded roads. Access to the small community of Commerce was affected. Flood risk reduction measures that were installed after the massive flood of 2011 helped mitigate damage. Personnel from the U.S. Army Corps of Engineers were assessing the effectiveness of these measures, which included trenches and relief wells. The Corps of Engineers conducted daily inspections of levees for seepage and other problems. The flooding continued into July. |
| July 2015 | Flood | Commerce | $20,000 | Major flooding of the Mississippi River continued from June through mid-July. Three homes on Scott County Road 308 alongside the Mississippi River were underwater, with up to a foot of water covering the first floor. Thousands of acres of cropland were flooded. The primary effect on residents near the river was difficult access due to flooded roads. Access to the small community of Commerce was affected. Flood risk reduction measures that were installed after the massive flood of 2011 helped mitigate damage. Personnel from the U.S. Army Corps of Engineers were assessing the effectiveness of these measures, which included trenches and relief wells. The Corps of Engineers conducted daily inspections of levees for seepage and other problems. |
| May 2014 | Thunderstorm Wind | Commerce | $20,000 | Several trees were blown down up to 9 inches in diameter. Branches were broken. Satellite dishes were damaged. |
| April 2013 | Flood | Commerce | $20,000 | Major flooding occurred along the Mississippi River. There was extensive flooding of low-lying fields, and many county roads were closed. The flooding continued into May. |
| March 2022 | Thunderstorm Wind | Commerce | $2,000 | Tree damage was reported on Highway E. |
| June 2019 | Thunderstorm Wind | Commerce | $1,000 | A trained spotter estimated wind gusts to 60 mph blew down a tree limb. |
| May 2024 | Flood | Commerce | - | Minor flooding briefly occurred near Thebes in early May. |
| May 2024 | Flood | Commerce | - | Minor flooding occurred on the Mississippi River at Thebes in low-lying areas. |
| December 2015 | Flood | Commerce | - | Major flooding began on the Mississippi River by the end of the month, but the crest did not occur until early January. There was widespread flooding of low-lying areas. |
| May 2013 | Flood | Commerce | - | Major flooding of the Mississippi River in late April gradually lessened in May. Minor to moderate flooding persisted through most of May. The number of closed roads decreased, and the acreage of flooded cropland gradually lowered. |
| June 2011 | Heavy Rain | Commerce | - | Numerous roads were flooding. Many streams and creeks were near bankful. |
| December 2011 | Heavy Rain | Commerce | - | A total of 4.22 inches was reported by the automated rain gage. |
| June 2011 | Flood | Commerce | - | The Mississippi River flooding in June was relatively minor compared to the April and May flooding. Some low-lying fields along the river were flooded. |
| May 2009 | Flood | Commerce | - | Minor to moderate flooding of the Mississippi River occurred for nearly the entire month of May. At the Cape Girardeau gage, where flood stage is 32 feet, the river crested at 38.89 feet on the 23rd. Moderate flooding begins there around 37 feet. Agricultural bottomland and low-lying areas were flooded. |
| November 2009 | Flood | Commerce | - | The Mississippi River rose above flood stage from heavy rain upriver in October. At the Cape Girardeau river gage, the river crested at 39.07 feet on the 4th. Flood stage there is 32 feet. Route E was closed due to flooding in Commerce. |
| April 2008 | Flood | Commerce | - | Moderate flooding of the Mississippi River occurred. Many low-lying areas were flooded, primarily farm fields. |
| March 2008 | Flood | Commerce | - | Moderate flooding of the Mississippi River occurred. At the Cape Girardeau gage, the river crested at 41.04 feet on March 24. Flood stage there is 32 feet, and moderate flooding begins at 37 feet. The river backed into several creeks. Large areas of agricultural land were flooded. Spring planting was not yet underway, so crop losses were negligible. |
| March 2011 | Flood | Commerce | - | no account filed |
| September 2008 | Flood | Commerce | - | no account filed |
| May 1997 | Hail | Commerce | - | no account filed |