Hail map for Lockport, IL — July 27, 2026
NOAA radar detected hail up to 2.00″ — hen egg size — within 5 miles of Lockport 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
- 70%
- NOAA POSH probability
- Measured on the ground
- 3.00″
- 10.5 mi away · Trained Spotter
NOAA's Probability of Severe Hail peaked at 70% over Lockport that day — high: around even odds of 1″ hail reaching the ground. 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.
Work Lockport on the live hail map
- The whole state around Lockport, with this swath already on it
- Three years of hail swaths, filterable by stone size
- GPS door-knocking, pins, jobs and estimates — the full loop, not a preview
- Month-to-month, cancel anytime
One state, one user, everything included. $79/mo, cancel anytime.
Did hail hit your address?
This page covers Lockport 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.
Check my addressFree, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.
Other towns hit on July 27, 2026
What people on the ground measured in Lockport, IL on July 27, 2026
21 reports filed with the National Weather Service — 4 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.
- 3.00″ baseball size Trained Spotter2 WSW Shorewood, IL · 10.5 mi away3:41 PM CDTWill County
Photo shows hail stone at least 3 inches in diameter that fell near Four Seasons Park in Shorewood. Hail stone was collected and frozen 2 minutes after it fell. Multiple other hail stones golf ball size. Time estimated by radar.
- 2.50″ hen egg size Trained Spotter1 WNW Westmont, IL · 14.9 mi away12:18 PM CDTDuPage County
- 2.25″ hen egg size Public2 N Shorewood, IL · 8.3 mi away3:35 PM CDTWill County
Relayed via mping. Time estimated by radar.
- 2.00″ hen egg size Public1 SE Minooka, IL · 14.0 mi away3:46 PM CDTWill County
Public report of hen egg size hail near Minooka. Time estimated by radar. Relayed via mping.
- 2.00″ hen egg size PublicDowners Grove, IL · 14.2 mi away12:05 PM CDTDuPage County
Measured hailstone of 2 inches in diameter. Time estimated by radar.
- 2.00″ hen egg size PublicClarendon Hills, IL · 14.7 mi away11:56 AM CDTDuPage County
Trained spotter reported 2 inch diameter hail in Clarendon Hills. Time estimated by radar.
- 1.75″ golf ball size Public2 SE Lemont, IL · 6.3 mi away12:32 PM CDTCook County
Relayed via mping. Time estimated by radar.
- 1.75″ golf ball size Amateur Radio4 SW Plainfield, IL · 10.6 mi away3:32 PM CDTWill County
Reports of golf ball size hail near Caton Farm Road and County Line Road. Relayed via amateur radio. Time estimated by radar.
- 1.75″ golf ball size Public2 NE Mokena, IL · 11.1 mi away12:49 PM CDTWill County
Relayed via mping. 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.
- 1.75″ golf ball size Trained Spotter1 NE Tinley Park, IL · 14.4 mi away12:30 PM CDTCook County
- 1.75″ golf ball size Public1 NW Westmont, IL · 14.9 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 Public1 ENE Willowbrook, IL · 15.0 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.
- 1.50″ half dollar size Trained Spotter1 S Shorewood, IL · 9.6 mi away3:45 PM CDTWill County
- 1.25″ half dollar size Public3 NW Homer Glen, IL · 6.1 mi away12:35 PM CDTWill County
Relayed via mping. Time estimated by radar.
- 1.25″ half dollar size Public2 SW Crystal Lawns, IL · 7.4 mi away3:35 PM CDTWill County
Relayed via mping. Time estimated by radar.
- 1.25″ half dollar size Public4 W Shorewood, IL · 11.7 mi away3:38 PM CDTKendall County
Relayed via mping.
- 1.25″ half dollar size Public1 WSW Willowbrook, IL · 13.4 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.
- 1.00″ quarter size Public2 W Frankfort, IL · 11.5 mi away1:04 PM CDTWill County
Public report of quarter size hail on the west side of Frankfort. Time estimated by radar.
- 1.00″ quarter size PublicDarien, IL · 12.0 mi away12:26 PM CDTDuPage County
Relayed via mping. Time estimated by radar.
- 1.00″ quarter size Public1 W Oak Forest, IL · 14.9 mi away12:47 PM CDTCook County
Relayed via mping.
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.
Lockport hail on July 27, 2026
NOAA radar estimated stones up to 2.00 inches — hen egg size — within about 5 miles of Lockport that day, across 3 distinct size bands. Sizes vary street to street inside a single swath.