Illinois

Storm History: Will County, Illinois

550 episodes, 1,440 events since 1956

Every storm the National Weather Service has filed in Will County, Illinois: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
1,440
Deaths
42
Injuries
499
Damage
$378 million
Episodes
550

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Will County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Tornado54035493$367 million
Hail32303$699,000
Flash Flood20130$9.8 million
Flood12000$402,000
Thunderstorm Wind8310$218,000
Winter Storm5200
Winter Weather2800
Excessive Heat1910
Extreme Cold/Wind Chill1810
Cold/Wind Chill1000
Drought1000
High Wind900
Lightning813$20,000
Heat600
Dust Storm500
Ice Storm400
Heavy Rain200
Funnel Cloud100
Wildfire100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Will County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Will CountyEvery warning in Will County since 1986Every county in Illinois

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.