Hail map for Oak Lawn, IL — July 27, 2026
NOAA radar detected hail up to 2.00″ — hen egg size — within 5 miles of Oak Lawn on July 27, 2026.
- Max hail size
- 2.00″
- hen egg
- Impact rating
- 7/10
- from stone size
- Size bands over the city
- 3
- distinct radar bands
- Reached the ground
- 50%
- NOAA POSH probability
- Measured on the ground
- 2.50″
- 13.5 mi away · Trained Spotter
NOAA's Probability of Severe Hail peaked at 50% over Oak Lawn that day — moderate: severe hail likely reached the ground somewhere nearby. It is a separate model from the size estimate above: one asks how big the stones were in the storm, the other asks whether they made it down.
Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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This page covers Oak Lawn as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
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Other towns hit on July 27, 2026
What people on the ground measured in Oak Lawn, IL on July 27, 2026
28 reports filed with the National Weather Service — 3 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 2.50″ hen egg size Trained Spotter1 WNW Westmont, IL · 13.5 mi away12:18 PM CDTDuPage County
- 2.00″ hen egg size PublicClarendon Hills, IL · 11.8 mi away11:56 AM CDTDuPage County
Trained spotter reported 2 inch diameter hail in Clarendon Hills. Time estimated by radar.
- 2.00″ hen egg size Public1 NW Clarendon Hills, IL · 12.6 mi away12:04 PM CDTDuPage County
Report from mPING: Hen Egg (2.00 in.).
- 2.00″ hen egg size PublicOak Brook, IL · 12.9 mi away12:08 PM CDTDuPage County
Photo shared on social media showing a hailstone roughly two inches in diameter.
- 2.00″ hen egg size PublicDowners Grove, IL · 13.6 mi away12:05 PM CDTDuPage County
Measured hailstone of 2 inches in diameter. Time estimated by radar.
- 1.75″ golf ball size Trained Spotter1 NE Tinley Park, IL · 9.1 mi away12:30 PM CDTCook County
- 1.75″ golf ball size Public1 ENE Willowbrook, IL · 9.6 mi away12:20 PM CDTCook County
Golf ball size hail near 63rd Street and County Line Road. Relayed via amateur radio. Time estimated by radar.
- 1.75″ golf ball size PublicHinsdale, IL · 10.8 mi away11:56 AM CDTDuPage County
Public report of golf ball size hail in Hinsdale. Relayed via social media. Time estimated by radar.
- 1.75″ golf ball size Public2 SE Lemont, IL · 12.0 mi away12:32 PM CDTCook County
Relayed via mping. Time estimated by radar.
- 1.75″ golf ball size Public2 NE Mokena, IL · 12.1 mi away12:49 PM CDTWill County
Relayed via mping. Time estimated by radar.
- 1.75″ golf ball size Public1 NW Westmont, IL · 13.5 mi away11:59 AM CDTDuPage County
Public report of golf ball size hail in northeastern Downers Grove. Hail fell for 15 minute period. Time estimated by radar.
- 1.75″ golf ball size PublicOak Brook, IL · 13.7 mi away11:54 AM CDTDuPage County
Public report of golf ball size hail in Oak Brook. Time estimated by radar.
- 1.75″ golf ball size PublicDowners Grove, IL · 14.1 mi away12:15 PM CDTDuPage County
Photo shared on social media of golf ball size hail.
- 1.50″ half dollar size Public1 E Greater Grand Cross, IL · 8.4 mi away1:17 PM CDTCook County
Relayed via mping. Time estimated by radar.
- 1.50″ half dollar size Public1 E La Grange Park, IL · 9.8 mi away12:01 PM CDTCook County
Relayed via mping.
- 1.50″ half dollar size Public1 NE Downers Grove, IL · 14.2 mi away12:00 PM CDTDuPage County
Relayed via mping.
- 1.25″ half dollar size Public1 NNE Indian Head Park, IL · 8.3 mi away12:03 PM CDTCook County
Photo shared on social media of quarter to half dollar size hail in La Grange Highlands.
- 1.25″ half dollar size Public1 NW Countryside, IL · 8.7 mi away12:02 PM CDTCook County
Public report of hail up to half dollar size near 55th Street and Willow Springs Road. Most hail stones nickel size.
- 1.25″ half dollar size Public1 WSW Willowbrook, IL · 11.2 mi away11:54 AM CDTDuPage County
Photo shared to social media shows half dollar size hail near 67th Street and Clarendon Hills Road. Time estimated by radar.
- 1.25″ half dollar size Public3 NW Homer Glen, IL · 11.5 mi away12:35 PM CDTWill County
Relayed via mping. Time estimated by radar.
- 1.25″ half dollar size Public1 W Northerly Island, IL · 12.5 mi away1:00 PM CDTCook County
Relayed via mping.
- 1.00″ quarter size Public1 NW Oak Lawn, IL · 0.9 mi away12:50 PM CDTCook County
Relayed via mping. Time estimated by radar.
- 1.00″ quarter size Public1 SW Evergreen Park, IL · 2.0 mi away12:51 PM CDTCook County
Relayed via mping. Time estimated by radar.
- 1.00″ quarter size Public1 SSW Merrionette Park, IL · 3.8 mi away12:46 PM CDTCook County
Photo of hail in Alsip. Time estimated by radar.
- 1.00″ quarter size Public1 W Midlothian, IL · 6.3 mi away1:01 PM CDTCook County
Relayed via mping. Time estimated by radar.
- 1.00″ quarter size Public1 W Oak Forest, IL · 7.7 mi away12:47 PM CDTCook County
Relayed via mping.
- 1.00″ quarter size Trained SpotterOak Forest, IL · 7.7 mi away12:50 PM CDTCook County
Also estimated 60 mph winds.
- 1.00″ quarter size PublicDarien, IL · 11.3 mi away12:26 PM CDTDuPage County
Relayed via mping. Time estimated by radar.
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Oak Lawn hail on July 27, 2026
NOAA radar estimated stones up to 2.00 inches — hen egg size — within about 5 miles of Oak Lawn that day, across 3 distinct size bands. Sizes vary street to street inside a single swath.