Will County, Illinois tornadoes

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100confirmed tornadoes since NOAA records began in 1950 (the first here in 1955). Most recent: March 19, 2025, EF1. 2026 so far: 4 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

The record

At a glance

Total1001950 to 2025
Per year1.3average since 1950
Peak monthJune24 of 100
StrongestF5Aug 28, 1990
Deaths34whole paths, see note
Injuries510whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Will County.

Seasons

When tornadoes hit here

By month

240 Jan: 1Feb: 1Mar: 9Apr: 16May: 11Jun: 24Jul: 19Aug: 10Sep: 2Oct: 2Nov: 5Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 24 of 100 tornadoes.

By time of day

150 12 AM: 2: 0: 13 AM: 0: 2: 16 AM: 1: 0: 09 AM: 1: 1: 012 PM: 5: 12: 53 PM: 6: 14: 96 PM: 9: 7: 159 PM: 4: 3: 212 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 8:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

80 1950: 0: 0: 0: 0: 0: 1: 0: 0: 1: 01960: 2: 2: 0: 0: 0: 1: 0: 1: 0: 11970: 0: 0: 5: 1: 1: 0: 0: 2: 2: 11980: 0: 0: 3: 0: 6: 1: 0: 0: 3: 01990: 1: 4: 0: 2: 2: 1: 0: 1: 0: 02000: 0: 1: 0: 3: 2: 0: 0: 2: 5: 02010: 1: 0: 0: 3: 1: 4: 0: 1: 3: 22020: 2: 3: 3: 8: 7: 419501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 4 preliminary reports.

By rating

EF0
42
EF1
35
EF2
14
EF3
5
EF4
1
EF5
1
Unknown
2

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

F5, August 28, 1990

29 deaths, 350 injuries Strongest

F5, August 28, 1990

16.4 mile path Longest path

81.5 miles, F3

July 17, 1972, whole path Widest

1,320 yards, EF3

June 22, 2015
Every tornado

All 100 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Mar 19, 2025EF11.62 mi90 yd00
Mar 19, 2025EF00.33 mi75 yd00
Mar 19, 2025EF01.53 mi60 yd00
Mar 19, 2025EF00.25 mi90 yd00
Jul 15, 2024EF129.1 mi300 yd00
Jul 15, 2024EF06.4 mi100 yd00
Jul 15, 2024EF02.9 mi300 yd00
Jul 15, 2024EF017 mi300 yd00
Jul 15, 2024EF234.6 mi325 yd02
Jul 15, 2024EF119.5 mi250 yd02
Jul 15, 2024EF119.2 mi200 yd00
Jul 28, 2023EFU1.46 mi15 yd00
Jul 28, 2023EF07.14 mi60 yd00
Jul 28, 2023EF05.13 mi60 yd00
Jul 28, 2023EF05.1 mi250 yd00
Jul 28, 2023EF17.57 mi225 yd00
Mar 31, 2023EF01.58 mi125 yd00
Mar 31, 2023EF04.72 mi250 yd00
Feb 27, 2023EF02.2 mi100 yd00
Jul 23, 2022EF00.7 mi150 yd00
Jul 23, 2022EF04.1 mi200 yd00
Jul 23, 2022EF04.5 mi150 yd00
Oct 11, 2021EF01.56 mi70 yd00
Jun 26, 2021EF04.1 mi100 yd00
Jun 20, 2021EF04.8 mi200 yd00
This year

2026 preliminary reports not yet confirmed

Report dateLocationRating
Aug 11, 20265 SSW FrankfortNot yet rated
Aug 11, 20263 N New LenoxNot yet rated
Aug 11, 20261 WNW WilmingtonNot yet rated
Jul 27, 20261 SSE RomeovilleNot yet rated

Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.

Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 12, 2026.