Hail History

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Hail history for Grayslake, IL

Last hail within 10 milesAug 9, 20261 in (quarter)
Hail days, last 12 months2
Largest hail since 20062.25 inMay 2, 2018
Hail days since 200632
Days with hail 1 inch or larger22
Tornadoes within 10 miles3
Damaging wind reports within 10 miles148

Hail has been reported within 10 miles of Grayslake on 32 days since 2006. The largest stones measured 2.25 in on May 2, 2018. Hail is most common here in June and May.

Recent hail near Grayslake

DateHail sizeWhereSource
Aug 9, 20261 in
quarter		Vernon Hills
1 hail report · closest 8 mi from Grayslake		NWS storm report (preliminary)
Jul 27, 20261 in
quarter		Wauconda
1 hail report · closest 8 mi from Grayslake		NWS storm report (preliminary)
May 15, 20252 in
hen egg		Gurnee, Waukegan
3 hail reports · closest 6 mi from Grayslake		NOAA Storm Events

One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.

Hail days near Grayslake by year

4062070820910211122133141152165171181192012122223124125226

When hail season peaks near Grayslake

Of the 32 hail days since 2006, most fell in June (8) and May (6).

JanFeb1Mar6Apr6May8Jun5Jul5Aug1SepOctNovDec

Largest hail storms near Grayslake

May 2, 2018 · 2.25 in · Lake Villa (5 mi from Grayslake)

National Weather Service description (English): Large hail was report at several locations including 1.75 inch diameter hail at Deep Lake Road just south of Grass Lake Road and 2.25 inch diameter hail at Fairfield and Petite Lake Road.

Apr 13, 2006 · 2 in (hen egg) · Cherry Vly (1 mi from Grayslake)

National Weather Service description (English): Hail slightly larger than golfballs was reported in downtown Cherry Valley.

May 15, 2025 · 2 in (hen egg) · Gurnee (6 mi from Grayslake)

Apr 25, 2016 · 1.75 in (golf ball) · Wauconda (7 mi from Grayslake)

National Weather Service description (English): Golf ball size hail damaged multiple vehicles as well as a skylight in a home.

Jul 23, 2022 · 1.75 in (golf ball) · Lakemoor (8 mi from Grayslake)

National Weather Service description (English): Golf ball size hail was reported in Lakemoor, which broke exterior lights. A photo was shared on social media of half dollar size hail.

Tornadoes within 10 miles of Grayslake

DateRatingWherePath
Jun 17, 2026EF0Campbell Airport
2 mi from Grayslake		0.2 mi long, 125 yd wide
Feb 27, 2024EF1Mundelein
6 mi from Grayslake		0.1 mi long, 40 yd wide
Aug 2, 2015EF1Round Lake
3 mi from Grayslake		7.5 mi long, 300 yd wide

Damaging thunderstorm winds near Grayslake

148 reports of damaging thunderstorm wind within 10 miles of Grayslake since 2006, on 68 days. The strongest measured gust was 81 mph on Aug 27, 2024.

DateStrongest gustWhereSource
Jul 27, 2026damage reportedAntioch
1 wind report		NWS storm report (preliminary)
Jun 11, 202663 mph, estimatedLibertyville, Rondout, Grayslake
4 wind reports		NOAA Storm Events
Jun 10, 202675 mph, estimatedRound Lake Beach, Fox Lake, Antioch
4 wind reports		NOAA Storm Events
Sep 21, 202563 mph, estimatedLakemoor
1 wind report		NOAA Storm Events
Jul 16, 202558 mph, estimatedIsland Lake
1 wind report		NOAA Storm Events
Jun 29, 202570 mph, estimatedLibertyville
1 wind report		NOAA Storm Events
May 15, 202569 mph, estimatedAntioch, Fox Lake Hills, Vernon Hills
4 wind reports		NOAA Storm Events
Mar 15, 202560 mph, estimatedVernon Hills
1 wind report		NOAA Storm Events
Aug 27, 202481 mph, measuredWauconda
1 wind report		NOAA Storm Events
Jul 15, 202463 mph, estimatedLindenhurst, Gurnee
2 wind reports		NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Grayslake; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Nearby cities

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Grayslake.

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