| April 2010 | Thunderstorm Wind | Milledgeville | $750,000 | Wind gusts estimated to be 70 mph caused a west-facing wall of a church to collapse in Milledgeville, IL around 858 pm April 5. In addition, several 3 foot diameter trees were blown down. Numerous power lines were also knocked down resulting in a power outage to much of the town. Most of the damage was across the northwest part of town and extended about 0.5 miles to the north. |
| April 2010 | Thunderstorm Wind | Milledgeville | $100,000 | Wind gusts estimated to be 60 mph damaged some outbuildings about 1 mile west of Milledgeville, IL around 845 pm April 5. |
| April 2010 | Thunderstorm Wind | Milledgeville | $50,000 | Wind gusts estimated to be 70 mph blew down several large trees in Milledgeville, IL around 855 pm April 5. The fallen trees knocked down power lines and destroyed the end of a machine shed. |
| May 1999 | Heavy Rain | Milledgeville | $20,000 | Localized heavy rain caused basement walls in 2 separate houses to collapse. Up to 4 feet of mud poured into the basements. Damage to each house and the contents was estimated at $10,000. |
| June 2010 | Thunderstorm Wind | Milledgeville | $5,000 | Wind gusts downed tree limbs in Milledgeville. |
| August 2008 | Thunderstorm Wind | Milledgeville | $5,000 | Wind gusts estimated to be 65 mph blew down some large branches and power lines in Milledgeville, IL at 650 pm August 4. |
| April 2006 | Hail | Milledgeville | $5,000 | also reported by law enforcement. Hail covered the ground. |
| August 2005 | Thunderstorm Wind | Milledgeville | $3,000 | A wind gust estimated at 57 knots (65 mph) resulted in 8-10 inch diameter limbs downed that landed up to 10 feet away from their parent tree. A garage door was pushed in on a residence. |
| March 2006 | Hail | Milledgeville | $3,000 | no account filed |
| August 2006 | Thunderstorm Wind | Milledgeville | $2,000 | A storm survey discovered 6 to 8 inch diameter limbs down on the west side of highway 40. |
| June 2007 | Thunderstorm Wind | Milledgeville | $1,000 | Power lines were blown down. |
| June 1998 | Thunderstorm Wind | Milledgeville | $500 | Strong thunderstorm winds downed several trees. |
| May 2024 | Thunderstorm Wind | Milledgeville | - | Trees blown down. Time estimated from radar data. |
| April 2023 | Hail | Milledgeville | - | The Milledgeville Fire Department hail ranging in size from pea to quarter. |
| July 2022 | Thunderstorm Wind | Milledgeville | - | A trained spotter reported damage from wind driven hail at this location. The wind driven hail caused two pieces of siding to fall off along with damage to a window and many dents in the remaining siding. |
| August 2021 | Thunderstorm Wind | Milledgeville | - | A spotter estimated 55 to 60 mph gust. |
| May 2020 | Tornado (EFU) | Milledgeville | - | A tornado developed ENE of Morrison, IL in Whiteside County, shortly before 2:30 pm. The tornado followed an intermittent path northeast before hitting a farmstead near the Whiteside/Carroll County border. This tornado entered Carroll County about 2 miles WSW of Hazelhurst, and travelled a little more than 2 miles before dissipating. The tornado was rated EF1 in Whiteside County, with maximum winds estimated around 100 mph. The tornado was designated as EF-U in Carroll County, as there was no observable damage. The tornado was on the ground for about 24 minutes along an intermittent 12 mile path. |
| September 2018 | Thunderstorm Wind | Milledgeville | - | A severe thunderstorm with straight line winds estimated around 100 mph caused significant damage in the Milledgeville, Illinois area. Damage began around 3 miles SW of Milledgeville, and continued through the town. Damage included numerous large trees uprooted and snapped, significant structural damage to large metal outbuildings, near destruction of a barn with cement block walls, and a large steel storage tank that was moved several feet. Damage swath was about 3 miles long. |
| September 2018 | Thunderstorm Wind | Milledgeville | - | The county emergency manager reported multiple large trees and power lines down, and an empty grain bin blown over railroad tracks. |
| September 2018 | Thunderstorm Wind | Milledgeville | - | A trained spotter reported a large tree uprooted in the town of Milledgeville. |
| September 2018 | Thunderstorm Wind | Milledgeville | - | A trained spotter estimated max wind gusts of around 60 mph. |
| July 2017 | Thunderstorm Wind | Milledgeville | - | A public report was received of 3 inch in diameter tree branches down. |
| June 2016 | Thunderstorm Wind | Milledgeville | - | Emergency manager reports a large tree limb down at a residence. The time is estimated from radar. |
| June 2014 | Thunderstorm Wind | Milledgeville | - | The emergency manager reported 60 mph winds. |
| August 2012 | Thunderstorm Wind | Milledgeville | - | The Emergency Manager estimated wind speeds of 40 to 60 MPH along with a report of two buildings down at the Fairgrounds. |
| June 2012 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 60 mph were observed in Milledgeville, IL at 745 pm CDT June 29. |
| June 2012 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 70 mph blew down several trees and limbs in Milledgeville, IL at 749 pm CDT June 29. |
| May 2011 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 60 mph blew down some branches just east of Milledgeville, IL at 613 pm CDT May 22. |
| May 2011 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 60 mph blew down some 8 to 10 inch diameter tree limbs in Milledgeville, IL at 638 pm CDT May 22. |
| April 2010 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 70 mph uprooted some 3 foot diameter trees about 1 mile north of Milledgeville, IL around 845 pm April 5. |
| May 2009 | Flash Flood | Milledgeville | - | Heavy rains caused the flash flooding of a low lying railroad underpass in Milledgeville, IL during the evening of May 13. |
| June 2008 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 65 mph blew down about six 8 to 10 inch diameter tree limbs in Milledgeville, IL at 6:25 pm June 12. |
| June 2008 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 60 mph blew down some two inch diameter tree branches in Milledgeville, IL at 7:00 pm June 12. |
| August 2008 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 60 mph were observed in Milledgeville, IL at 630 pm August 4. Sustained wind speeds of 40 mph were observed for about ten minutes. |
| August 2008 | Thunderstorm Wind | Milledgeville | - | Wind gusts estimated to be 60 mph blew down some trees and branches in the vicinity of Milledgeville, IL at 620 pm August 4. A power outage was also observed. A trained spotter also contributed to this report. |
| May 1999 | Tornado (F0) | Milledgeville | - | Law enforcement officials reported a brief tornado. No damage was reported. |
| June 1994 | Thunderstorm Wind | Milledgeville | - | Winds of 60 to 70 mph blew tres down. |
| April 2023 | Hail | Milledgeville | - | no account filed |
| May 2015 | Hail | Milledgeville | - | no account filed |
| June 1996 | Thunderstorm Wind | Milledgeville | - | no account filed |
| May 1996 | Thunderstorm Wind | Milledgeville | - | no account filed |