| April 1996 | Tornado (F1) | Decatur | 9 hurt, $1,500,000 | no account filed |
| May 2006 | Lightning | Decatur | 1 hurt | A man was slightly injured by lightning on the east side of Decatur when the car he was riding in was struck. |
| May 2013 | Tornado (EF1) | Decatur | $500,000 | A tornado touched down at 10:03 PM CDT on the northwest side of Decatur near the intersection of Division Street and Summit Avenue. The tornado tracked northeastward through Graceland Cemetery, across Oakland Avenue, and just south of the Decatur Memorial Hospital before dissipating near East Maywood Court at 10:07 PM CDT. Numerous trees and tree branches were blown down along the path of the tornado, with the most significant tree damage occurring in Graceland Cemetery. The Plaza TV shop on Oakland Avenue lost its roof and suffered broken windows and siding damage. Other minor roofing damage occurred along the path of the tornado, with numerous trees and tree branches knocked down for several blocks south of the tornado as well. No injuries were reported. |
| February 1996 | Thunderstorm Wind | Decatur | $250,000 | no account filed |
| July 2016 | Thunderstorm Wind | Decatur | $140,000 | Twenty five trees and hundreds of large tree branches were blown down across the city of Decatur. |
| May 1995 | Thunderstorm Wind | Decatur | $135,000 | A Decatur Sanitary District storage building was destroyed by thunderstorm winds. Four detached garages were blown down and three businesses had minor roof damage. Also, numerous trees and power lines were blown down. Damage was estimated around $135,000. |
| July 2020 | Thunderstorm Wind | Decatur | $125,000 | Numerous trees and power lines were blown down throughout Decatur. |
| October 2010 | Thunderstorm Wind | Decatur | $75,000 | An outbuilding roof was peeled half way off and the west wall of a church was pushed in and damaged at 2954 West Ash Avenue. |
| October 2007 | Thunderstorm Wind | Decatur | $60,000 | Trees were blown down on Lake Shore Drive. A hospital roof was damaged, and debris broke car windows. |
| November 2016 | Thunderstorm Wind | Decatur | $50,000 | Numerous tree limbs and power lines were blown down on the south side of Decatur. |
| April 2011 | Thunderstorm Wind | Decatur | $45,000 | A shed and 2 large trees were blown down. 3 houses and 2 garages suffered minor damage. |
| August 2009 | Thunderstorm Wind | Decatur | $40,000 | Numerous trees and power lines were blown down across Decatur. |
| August 2014 | Thunderstorm Wind | Decatur | $35,000 | Several trees and power lines were blown down across Decatur. |
| July 2018 | Thunderstorm Wind | Decatur | $32,000 | A tree was blown over onto a house. |
| May 2013 | Thunderstorm Wind | Decatur | $30,000 | Multiple tree limbs were blown down on Regal Avenue in Decatur. |
| May 2013 | Thunderstorm Wind | Decatur | $20,000 | Numerous large tree branches were blown down. |
| July 2008 | Thunderstorm Wind | Decatur | $20,000 | Trees and power lines were blown down in Decatur. |
| July 2008 | Thunderstorm Wind | Decatur | $20,000 | Several power poles were broken by high winds. |
| August 2009 | Thunderstorm Wind | Decatur | $15,000 | Several trees were blown onto power lines in Decatur. |
| August 2009 | Thunderstorm Wind | Decatur | $15,000 | Several tents were damaged by estimated 60 mph winds at the Farm Progress Show in Decatur. |
| October 2010 | Thunderstorm Wind | Decatur | $10,000 | A semi truck was blown over on I-72 at mile marker 136. |
| October 2010 | Thunderstorm Wind | Decatur | $5,000 | A pavillion was blown over. |
| May 2007 | Thunderstorm Wind | Decatur | $3,000 | A tree was blown over on top of a house.| |
| July 2016 | Thunderstorm Wind | Decatur | $2,000 | A large tree was blown over on Summit Avenue in Decatur. |
| June 2015 | Thunderstorm Wind | Decatur | $2,000 | A tree was blown down across Grand Avenue in Decatur. |
| March 2026 | Thunderstorm Wind | Decatur | - | Power lines were blown down on Florida Court. |
| May 2025 | Thunderstorm Wind | Decatur | - | Numerous tree branches and power lines were blown down throughout Decatur. |
| July 2025 | Flash Flood | Decatur | - | Street flooding was occurring along South Shores Drive in Decatur. |
| December 2025 | Thunderstorm Wind | Decatur | - | A few tree branches were blown down. |
| January 2023 | Tornado (EF1) | Decatur | - | A tornado touched down on the northeast side of Decatur at 6:00 PM CST. The tornado tracked northeastward, causing damage to an abandoned bowling alley on North 22nd Street. Several of the wall panels on the southeast side of the building were removed and blown to the northeast. A trained spotter watched the tornado cross 22nd Street before lifting at 6:01 PM CST. |
| March 2023 | Thunderstorm Wind | Decatur | - | A 150-year old Magnolia tree was snapped at the base at the Millikin Homestead. |
| August 2023 | Thunderstorm Wind | Decatur | - | Several tree branches were blown down. |
| June 2023 | Thunderstorm Wind | Decatur | - | Several large trees were snapped. |
| June 2023 | Thunderstorm Wind | Decatur | - | A 3-inch diameter tree branch was snapped. |
| June 2023 | Thunderstorm Wind | Decatur | - | Four-inch diameter tree limbs were blown down west of Millikin University. |
| June 2023 | Thunderstorm Wind | Decatur | - | Several tree branches were blown down. |
| August 2022 | Thunderstorm Wind | Decatur | - | Power lines were blown down in Decatur. |
| August 2022 | Thunderstorm Wind | Decatur | - | Several tree branches were blown down in Decatur. |
| August 2022 | Thunderstorm Wind | Decatur | - | A large tree was blown onto a house, causing structural damage. |
| April 2020 | Thunderstorm Wind | Decatur | - | Several power lines were blown down across Decatur. |
| April 2020 | Thunderstorm Wind | Decatur | - | A two and a half foot-diameter tree was uprooted and several large tree branches were blown down in Fairview Park in Decatur. |
| August 2020 | Thunderstorm Wind | Decatur | - | A 12-inch diameter tree branch was blown down. |
| May 2019 | Thunderstorm Wind | Decatur | - | Numerous tree branches were blown down in Fairview Park on the west side of Decatur. |
| May 2019 | Thunderstorm Wind | Decatur | - | A tree was blown onto a house. |
| May 2019 | Thunderstorm Wind | Decatur | - | A large tree was blown onto a house on Harper Avenue. |
| August 2019 | Thunderstorm Wind | Decatur | - | Several tree limbs were blown down. |
| June 2018 | Thunderstorm Wind | Decatur | - | A large tree was snapped in the 1400 block of West Riverview Street in Decatur. |
| June 2009 | Thunderstorm Wind | Decatur | - | A large tree and power lines were blown down at St. Mary's Hospital in Decatur. |
| July 2008 | Hail | Decatur | - | One inch diameter hail fell for 15 to 20 minutes. |
| March 2007 | Thunderstorm Wind | Decatur | - | Numerous trees and power lines were blown down on the east side of town. |
| October 2007 | Hail | Decatur | - | Golf ball sized hail was reported on the east side of Lake Decatur. |
| March 2006 | Thunderstorm Wind | Decatur | - | In addition, penny size hail was reported. |
| January 2005 | Flash Flood | Decatur | - | Very heavy rain caused roads to flood east of Decatur. A portion of Illinois Route 105 was closed for a few hours due to flooding. |
| June 2005 | Flash Flood | Decatur | - | Route 36 was closed due to water flowing across it. Numerous viaducts in city were flooded. |
| July 2005 | Thunderstorm Wind | Decatur | - | Several tree limbs blown down. |
| June 2004 | Flash Flood | Decatur | - | A foot of water was reported over 22nd Street near Garfield in Decatur. |
| April 2003 | Thunderstorm Wind | Decatur | - | Several trees were blown down. |
| May 2002 | Thunderstorm Wind | Decatur | - | A phoneline pole was snapped in half by thunderstorm winds. |
| July 2002 | Thunderstorm Wind | Decatur | - | Numerous trees, tree limbs, and power lines were blown down. A few homes had minor roof damage due to fallen trees and tree limbs. No injuries reported. |
| July 2002 | Thunderstorm Wind | Decatur | - | Thunderstorm winds blew a carport over and moved it 20 yards. |