Hail History

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Hail history for Oak Brook, IL

Last hail within 10 milesJul 28, 20262 in (hen egg)
Hail days, last 12 months4
Largest hail since 20064.8 inMar 10, 2026
Hail days since 200662
Days with hail 1 inch or larger41
Tornadoes within 10 miles27
Damaging wind reports within 10 miles505

Hail has been reported within 10 miles of Oak Brook on 62 days since 2006. The largest stones measured 4.8 in on Mar 10, 2026. Hail is most common here in June and July.

Recent hail near Oak Brook

DateHail sizeWhereSource
Jul 28, 20262 in
hen egg		Oak Brook
1 hail report · closest 1 mi from Oak Brook		NWS storm report (preliminary)
Jul 27, 20262.5 in
tennis ball		Westmont, Clarendon Hills, Downers Grove
27 hail reports · closest 1 mi from Oak Brook		NWS storm report (preliminary)
Mar 30, 20262 in
hen egg		Berwyn, Oak Brook, Hinsdale
11 hail reports · closest 2 mi from Oak Brook		NOAA Storm Events
Mar 10, 20264.8 inDarien, Woodridge, La Grange
4 hail reports · closest 4 mi from Oak Brook		NOAA Storm Events
Aug 16, 20251 in
quarter		Woodridge
1 hail report · closest 7 mi from Oak Brook		NOAA Storm Events
May 15, 20251.5 in
ping pong ball		Elmhurst, Franklin Park, Glen Ellyn
5 hail reports · closest 4 mi from Oak Brook		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 Oak Brook by year

80620730840921051131241331431516317318219420121122223324225426

When hail season peaks near Oak Brook

Of the 62 hail days since 2006, most fell in June (13) and July (10).

Jan1Feb7Mar7Apr9May13Jun10Jul10Aug1Sep1Oct3NovDec

Largest hail storms near Oak Brook

Mar 10, 2026 · 4.8 in · Darien (6 mi from Oak Brook)

National Weather Service description (English): Numerous hail reports came out of southeastern DuPage County, mostly in the vicinity of Woodridge and Darien. Sizes ranged from 1 to 4 inches in diameter, though most of the reports were greater than 2.5 inches. Three separate reports of 4 inch hail were received out of this area.

Feb 27, 2024 · 2.5 in (tennis ball) · Darien (7 mi from Oak Brook)

National Weather Service description (English): Photo shared from a trained spotter via social media showed 2.5 hail on the south side of Downers Grove.

Jul 27, 2026 · 2.5 in (tennis ball) · Westmont (4 mi from Oak Brook)

Mar 30, 2026 · 2 in (hen egg) · Berwyn (7 mi from Oak Brook)

National Weather Service description (English): Hail up to the size of golf balls was reported in Oak Brook.

Jul 28, 2026 · 2 in (hen egg) · Oak Brook (1 mi from Oak Brook)

Tornadoes within 10 miles of Oak Brook

DateRatingWherePath
Jul 28, 2026EF?Wheaton
9 mi from Oak Brook
Jul 27, 2026EF?Glen Ellyn
8 mi from Oak Brook
Jul 27, 2026EF?Wheaton
9 mi from Oak Brook
Jul 27, 2026EF?Glen Ellyn
8 mi from Oak Brook
Jul 27, 2026EF?Downers Grove
6 mi from Oak Brook
Jun 11, 2026EF2Willow Springs
9 mi from Oak Brook		8.4 mi long, 350 yd wide
Jul 15, 2024EF0Flowerfield
7 mi from Oak Brook		3.1 mi long, 150 yd wide
Jul 15, 2024EF0Villa Park
4 mi from Oak Brook		0.8 mi long, 50 yd wide
Jul 15, 2024EF0Bensenville
8 mi from Oak Brook		1.3 mi long, 250 yd wide
Jul 15, 2024EF0Broadview
4 mi from Oak Brook		1.2 mi long, 175 yd wide
Jul 15, 2024EF0Bensenville
9 mi from Oak Brook		2.8 mi long, 250 yd wide
Jul 15, 2024EF1Willow Springs
7 mi from Oak Brook		2.1 mi long, 75 yd wide

Damaging thunderstorm winds near Oak Brook

505 reports of damaging thunderstorm wind within 10 miles of Oak Brook since 2006, on 114 days. The strongest measured gust was 82 mph on Jul 1, 2012.

DateStrongest gustWhereSource
Aug 11, 202670 mph, measuredLemont, Westmont, Darien
12 wind reports		NWS storm report (preliminary)
Jul 27, 202678 mph, measuredLemont, Midway Airport, Oakbrook Terrace
34 wind reports		NWS storm report (preliminary)
Jul 3, 202672 mph, measuredMidway Airport, Westchester, Itasca
6 wind reports		NWS storm report (preliminary)
Jul 2, 202666 mph, measuredElmhurst, Villa Park
6 wind reports		NWS storm report (preliminary)
Jun 13, 202658 mph, estimatedWoodridge
1 wind report		NOAA Storm Events
Jun 11, 202681 mph, estimatedClearing, Argonne National Laboratory, La Grange
5 wind reports		NOAA Storm Events
Jun 10, 202681 mph, estimatedStickney, Hillside, Chicago Midway Airport
10 wind reports		NOAA Storm Events
May 18, 202679 mph, measuredChicago Midway Airport, Summit, Forest View
3 wind reports		NOAA Storm Events
Apr 17, 202664 mph, measuredIndian Head Park
1 wind report		NOAA Storm Events
Apr 2, 202669 mph, measuredChicago Midway Airport, Flowerfield, Indian Head Park
3 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 Oak Brook; 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 Oak Brook.

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