TornadoLookup
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Monroe storm history

Storm events recorded in Monroe, Illinois between 1950 and 2025.

447
Total events
40
Tornadoes
119
Hail
31
Floods
1
Deaths
$4.2M
Property damage

Most significant events

Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.

April 18, 1975 · Monroe, Illinois
Tornado F3 Tornado1 injury
August 26, 2025 · Monroe, Illinois
Dense Fog Dense Fog1 death
At around 6 AM CDT, deputies were called to the seen of an overturned vehicle with an individual thrown from it at the intersection of Fountain and Levee Roads. The person was pronounced dead at the scene. The official investigation determined that extreme fog was the cause of th…
July 18, 1999 · Monroe, Illinois
Heat Heat6 injuries
August 15, 2025 · Monroe, Illinois
Excessive Heat Excessive Heat
The combination of temperatures in the upper 90s and high humidity led to heat index values over 105 degrees for several days. The heat index peaked around 110 degrees.
July 22, 2025 · Monroe, Illinois
Excessive Heat Excessive Heat
Hot and extremely humid conditions led to a week of heat index values over 105 degrees. The heat index peaked near 112 degrees.
April 20, 2025 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds snapped multiple trees and toppled several at their base.
April 20, 2025 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds downed power poles west of Hecker.
April 20, 2025 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Broadcast media reported estimated 65 mph thunderstorm wind gusts in Waterloo. They also reported visibility near zero statute miles coinciding with the wind gust.
April 20, 2025 · Monroe, Illinois
Tornado EF1 Tornado
The tornado touched down at 8:00 PM along Koch Road, southeast of Madonnaville, and moved northeast, producing minor damage to a home and an outbuilding along Rock Road. Further to the northeast along LRC Road the tornado overturned an outbuilding and caused tree damage. More tre…
April 20, 2025 · Monroe, Illinois
Tornado EF1 Tornado
A brief and weak tornado touched down along EE Road just south of Gilmore Lake and quickly moved northeast before dissipating at the intersection of EE Road and Gilmore Lake Road at 8:13 PM. When the tornado touched down it overturned an outbuilding, and was rated at 99 mph (EF-1…
March 30, 2025 · Monroe, Illinois
Hail Hail
March 30, 2025 · Monroe, Illinois
Hail Hail
Hail ranging from 1 inch to 1.5 inches fell in Columbia.
March 30, 2025 · Monroe, Illinois
Hail Hail
March 30, 2025 · Monroe, Illinois
Hail Hail
March 14, 2025 · Monroe, Illinois
Tornado EF1 Tornado
At approximately 9:52 PM a tornado began southwest of Valmeyer, IL in Monroe County and continued northeast where it impacted the towns of Valmeyer and Waterloo. The worst damage was to residences and small businesses within these municipalities. From Waterloo the tornado moved i…
March 14, 2025 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds overturned a semi-truck on the Illinois side of the Jefferson Barracks Bridge.
March 14, 2025 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds caused damage to trees and sheds.
March 14, 2025 · Monroe, Illinois
Hail Hail
March 14, 2025 · Monroe, Illinois
Hail Hail
March 14, 2025 · Monroe, Illinois
Hail Hail
The Columbia police department reported hail between quarter and golf ball sized.
March 14, 2025 · Monroe, Illinois
Hail Hail
March 14, 2025 · Monroe, Illinois
Hail Hail
March 14, 2025 · Monroe, Illinois
Hail Hail
March 14, 2025 · Monroe, Illinois
Hail Hail
January 5, 2025 · Monroe, Illinois
Winter Storm Winter Storm
A mix of freezing rain and sleet fell through the morning of the 5th. After a brief break in the afternoon, snow fell in the evening. A total of 3 to 6 inches of snow and sleet fell across the county. About 1 to 2 inches of this fell in the form of sleet along with up to one quar…
May 26, 2024 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
A tree was reported to be down and a fence damaged near Columbia.
May 26, 2024 · Monroe, Illinois
Tornado EF0 Tornado
The tornado crossed from St. Louis County into Monroe County (Illinois) about 3.5 miles west of Columbia. As it tracked to the east it snapped off several tree limbs and caused a small farm shed to collapse after the walls were blown out along DD Road, just west of intersection w…
May 8, 2024 · Monroe, Illinois
Hail Hail
May 8, 2024 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
A trained spotter reported tree branches down in Waterloo.
April 18, 2024 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Shingles were blown off of at least one home and 1 inch diameter tree limbs were broken.
April 2, 2024 · Monroe, Illinois
Hail Hail
March 14, 2024 · Monroe, Illinois
Hail Hail
A swath of large hail up to baseball size fell across portions of east central Monroe County. The large hail was reported in New Design and Hecker, as well as rural areas nearby.
March 14, 2024 · Monroe, Illinois
Hail Hail
March 14, 2024 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
A large pine tree was split in half and several power lines were blown down around town.
March 13, 2024 · Monroe, Illinois
Hail Hail
A discrete thunderstorm that produced up to 1.50 inch hail in Jefferson County, MO, weakened as it crossed the Mississippi River. It quickly regained strength and produced up to 1.75 inch hail in and around the towns of Renault and Ames. This storm would go on to produce hail in …
March 13, 2024 · Monroe, Illinois
Hail Hail
Two cells merged in Monroe County, briefly producing 0.75 to 1 inch hail before weakening. No damage was reported.
January 14, 2024 · Monroe, Illinois
Cold/Wind Chill Cold/Wind Chill
Wind chill values dropped to as low as 26 below zero with the coldest values during the nighttime hours.
August 20, 2023 · Monroe, Illinois
Excessive Heat Excessive Heat
A period of very hot and extremely humid weather began on Sunday, August 20 and lasted through Friday, August 25. Heat index values climbed to 110 to 120 degrees each day as measured by numerous reporting sites across the region.
August 13, 2023 · Monroe, Illinois
Tornado EF0 Tornado
A brief, weak tornado formed near Ames Road, just north of intersection with Faust Road and tracked due east. It struck a shed, producing EF0 damage. Images show the debris from the shed was thrown into the pond down wind. Further east, photos show a narrow track through a soybea…
July 29, 2023 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
July 27, 2023 · Monroe, Illinois
Excessive Heat Excessive Heat
Excessive heat across the county with highs 95 to 100 each day. Heat index values as high as 110 each day.
July 1, 2023 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds blew down several trees just southeast of Columbia.
June 30, 2023 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds blew down numerous trees, tree limbs and power lines across the northern portions of Monroe County. Some of the trees and power lines were down at the intersection of St. Paul Street and Gardner Street in Columbia. Columbia's American Legion Park and YMCA susta…
April 15, 2023 · Monroe, Illinois
Tornado EF0 Tornado
At 6:34 PM CDT a tornado touched down on Bluff Road about 1.8 miles southwest of Maeystown. As it tracked to the northeast it caused minor tree damage as well as moderate damage to a farm outbuilding on the southwest side of town. It continued to the northeast across Monroe Count…
April 15, 2023 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds blew down several large trees and tree limbs at a residence on Ahne Road just northeast of intersection with Kk Road. Also, a small portion of an outbuilding roof was torn off. Further to the east a large section of tree was blown down next to a mobile home.
April 15, 2023 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds blew down several trees along Illinois Route 156 between Valmeyer and Foster Pond.
April 15, 2023 · Monroe, Illinois
Hail Hail
April 15, 2023 · Monroe, Illinois
Tornado EF0 Tornado
A tornado touched down at 6:39 PM CDT just east of intersection of Harris Road and B Road and tracked to the east northeast. There was some minor roof damage to a couple of outbuildings before the tornado crossed Bluff Road, around 2.6 miles south southwest of Valmeyer. For the r…
April 15, 2023 · Monroe, Illinois
Thunderstorm Wind Thunderstorm Wind
Thunderstorm winds blew a small section of roof off of an outbuilding.
April 15, 2023 · Monroe, Illinois
Tornado EFU Tornado
A tornado briefly touched down in the Mississippi river bottoms on the northwest side of Columbia, IL. The only evidence of this tornado was a video provided via local media. Duration was likely less than 1 minute, no damage or injuries. The tornado was rated EFU with an estimate…

Events by year

YearEventsTornadoes
2025233
2024121
2023174
202240
202120
202030
2019101
2018100
2017130
2016120
201590
201492
201370
2012190
2011251
2010262
200940
2008241
200790
2006282
2005110
2004100
2003153
2002150
2001120
200080
199950
1998162
199770
1996151
1995146
199431
199360
199250
199130
199020
198910
198820
198421
198310
198220
198130
197730
197630
197531
197430
197311
197110
196831
196522
196411
195911
195722