Hail size 1.25"
4 W Shorewood Kendall County
“Relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail in Joliet Jul 27, 2026
Hit 7 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 0", and the radar-estimated size reached 1.75" aloft.
Largest hailstone
1.75"
≈ golf ball · radar-estimated size aloft Homes in the hail footprint
25,360
Ground reports
6
6 hailThe 2nd most severe storm Joliet has seen in the last 12 months
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
6.3 /10
- Hail size
- 44 /100
- Homes exposed
- 88 /100
- Ground truth
- 100 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Joliet saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
NEXRAD radar signatures
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
Max size
0"
Detections
0
Radar-estimated hail size
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Max size
1.75"
Where Jul 27, 2026 sits in Joliet's hail record
This was Joliet's 4th recorded hail day, arriving 24 days after the Jul 3, 2026 storm. By severity it ranks 2nd of the 4 storms we have logged here. Radar put the day's largest stone over Joliet at 1.75" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Joliet: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: New Lenox (5 miles east, up to 2.75"); Shorewood (5 miles west, up to 1.75"); Romeoville (7 miles north, up to 3").
These maps are stills from Joliet's Jul 27, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
What people on the ground reported
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
Hail reports
6 reports Hail size 3"
2 WSW Shorewood Will 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. Multipl (LOT)”
— NOAA / SPC storm report
Hail size 2.25"
2 N Shorewood Will County
“Relayed via mping. Time estimated by radar. (LOT)”
— NOAA / SPC storm report
Hail size 1.25"
2 SW Crystal Lawns Will County
“Relayed via mping. Time estimated by radar. (LOT)”
— NOAA / SPC storm report
Hail size 2"
1 SE Minooka Will County
“Public report of hen egg size hail near Minooka. Time estimated by radar. Relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail size 1.5"
1 S Shorewood Will County
“(LOT)”
— NOAA / SPC storm report
Storm forensics
Read from the arrival times and locations of the NOAA ground reports,
not a radar-measured storm track.
How the storm moved
Hail was reported over 11 minutes, from to .
Reports came from Shorewood, Crystal Lawns, and Minooka — beyond Joliet itself.
What 1.75" hail means for Joliet roofs
At an inch and a half, hail cracks shingles, strips granules down to the mat, and dents gutters, vents, and siding. A footprint like this typically produces a wave of insurance claims — and the contractor who reaches the homeowner first usually gets the inspection.
What this storm is worth to a roofer
$304M
Potential roof exposure — 25,360 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
127 jobs
Illustrative work
~$1.9M
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Joliet on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Joliet storm history — this Jul 27, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
Joliet hail history
← All hail in Joliet 4 recorded storm days in Joliet, IL
Other storms in Joliet
A storm day here is a convective day — it runs from noon to noon
UTC, so late-night hail is grouped with the afternoon storm that
spawned it rather than split across two calendar dates. Ground
reports are public-domain observations from the NOAA Storm
Prediction Center. Radar surfaces are detections and estimates,
not confirmed damage. Last updated Aug 3, 2026.