Boone County, Illinois
Tornadoes, hail, floods and severe storms recorded here between 1959 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
25
Tornado reports
65
Hail reports
35
Floods since 1996
419
All events
26
Deaths
$8.3M
Property damage
Tornado paths in Boone County
The part of each tornado’s path NOAA recorded in this county, 25 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
A tornado touched down at 330 pm CST about 1.2 miles north of Poplar Grove in Boone County and ended at 348 pm about 3.2 miles north northeast of Harvard in McHenry County. The tornado crossed the Boone McHenry County line near Hunter Road, about 3 miles northeast of Capron. The …
This tornado crossed into Boone County south of Cherry Valley from Winnebago County. The tornado, which originated in Ogle County, traversed northeastward doing minor damage to farms. As it moved through the town of Belvidere, the storm produced multiple instances of damage to bu…
A tornado which touched down in eastern Winnebago County, crossed into western Boone County and moved across largely open rural fields towards the town of Caledonia. Significant damage occurred to at least six buildings in Caledonia, with approximately 20 additional buildings sus…
Heat Heat
Thunderstorm Wind Thunderstorm Wind
A photo showed a large tree limb blocking part of Shaw Road between State Street and Newburg Road.
Thunderstorm Wind Thunderstorm Wind
Two trees 1 to 2 feet in diameter were blown down at a high school.
Flood Flood
There were multiple reports of roadway flooding between Belvidere and Timberlane.
Thunderstorm Wind Thunderstorm Wind
A three inch diameter tree limb was blown down.
Thunderstorm Wind Thunderstorm Wind
A personal weather station measured a wind gust to 58 mph.
Funnel Cloud Funnel Cloud
McHenry County emergency management reported a funnel cloud near Capron.
Thunderstorm Wind Thunderstorm Wind
Heavy Rain Heavy Rain
A personal weather station recorded 1.81 inches of rainfall near Timberlane between 6:00 and 7:00 PM CST.
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A tree was downed along Poplar Grove Rd south of Poplar Grove.
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Hail Hail
Winter Storm Winter Storm
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Cold/Wind Chill Cold/Wind Chill
Winter Weather Winter Weather
Winter Weather Winter Weather
Cold/Wind Chill Cold/Wind Chill
Winter Storm Winter Storm
Winter Storm Winter Storm
Heavy Rain Heavy Rain
A private weather station recorded 5.75 of rain through 7 PM CST, most of which would have fallen since 5:30 PM CST.
Thunderstorm Wind Thunderstorm Wind
Trees 3 to 4 feet in diameter were snapped along N Appleton Rd between Douglas and Maryland courts in Belvidere.
Thunderstorm Wind Thunderstorm Wind
Seven trees were downed on the corner of 2nd St and Whitney Blvd, the largest being about 4 feet in diameter. Power lines were also reported down.
Thunderstorm Wind Thunderstorm Wind
Boone County EM reported numerous trees down on the southeast side of Belvidere.
Thunderstorm Wind Thunderstorm Wind
Two trees two feet in diameter were downed and branches 6 to 12 inches in diameter were broken near Gardner and Jackson streets in Belvidere.
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A tree was blown down on Mill Street Road and Garden Prairie Road.
Excessive Heat Excessive Heat
Heavy Rain Heavy Rain
A private weather station recorded 3.91 of storm total rain through 6 PM. 1.12 were recorded in a 30-minute period.
Thunderstorm Wind Thunderstorm Wind
Extensive tree damage was reported along Distillery Rd outside of Belvidere. One tree trunk was snapped a few feet off the ground and multiple large tree limbs were downed, some of them onto power lines.
Tornado EF0 Tornado
A brief EF0 tornado with peak estimated winds of 85 mph touched down northwest of Belvidere. Photos shared by the Boone County EMA show that a concentrated area of tree damage occurred at and across the street from a property along Distillery Road south of US Rt. 20. Multiple tre…
Hail Hail
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Cold/Wind Chill Cold/Wind Chill
Cold/Wind Chill Cold/Wind Chill
Winter Weather Winter Weather
Winter Weather Winter Weather
Drought Drought
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 21 | 0 |
| 2025 | 23 | 1 |
| 2024 | 14 | 1 |
| 2023 | 21 | 3 |
| 2022 | 29 | 2 |
| 2021 | 25 | 0 |
| 2020 | 12 | 1 |
| 2019 | 12 | 0 |
| 2018 | 8 | 0 |
| 2017 | 13 | 3 |
| 2016 | 5 | 0 |
| 2015 | 12 | 5 |
| 2014 | 7 | 0 |
| 2013 | 8 | 0 |
| 2012 | 9 | 0 |
| 2011 | 11 | 0 |
| 2010 | 10 | 1 |
| 2009 | 11 | 1 |
| 2008 | 15 | 2 |
| 2007 | 12 | 0 |
| 2006 | 17 | 0 |
| 2005 | 14 | 0 |
| 2004 | 6 | 0 |
| 2003 | 8 | 0 |
| 2002 | 9 | 0 |
| 2001 | 7 | 0 |
| 2000 | 7 | 0 |
| 1999 | 6 | 0 |
| 1998 | 12 | 0 |
| 1997 | 5 | 0 |
| 1996 | 9 | 0 |
| 1995 | 3 | 0 |
| 1993 | 1 | 0 |
| 1992 | 1 | 0 |
| 1991 | 4 | 1 |
| 1990 | 3 | 0 |
| 1989 | 3 | 0 |
| 1988 | 1 | 0 |
| 1987 | 5 | 0 |
| 1986 | 1 | 1 |
| 1985 | 1 | 0 |
| 1984 | 4 | 1 |
| 1983 | 1 | 0 |
| 1982 | 1 | 0 |
| 1980 | 2 | 0 |
| 1978 | 1 | 0 |
| 1977 | 1 | 0 |
| 1976 | 1 | 0 |
| 1974 | 1 | 0 |
| 1973 | 1 | 0 |
| 1972 | 2 | 0 |
| 1967 | 1 | 1 |
| 1963 | 1 | 0 |
| 1959 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in Boone County, measured to its path.
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