Hail size 1"
1 S Hanover Park DuPage County
“Public report of quarter size hail relayed via mping. (LOT)”
— NOAA / SPC storm report
Hail in Schaumburg Jul 27, 2026
Hit 7 days agoThe radar-estimated size surface caught this storm, reaching 2" aloft. NEXRAD logged no point detections over Schaumburg this day. At 2" — tennis ball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
2"
≈ tennis ball · radar-estimated size aloft Homes in the hail footprint
62,926
Ground reports
5
5 hailThe most severe storm Schaumburg 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.
6.6 /10
- Hail size
- 50 /100
- Homes exposed
- 96 /100
- Ground truth
- 83 /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 Schaumburg 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.
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
2"
Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Schaumburg, so there is one map to show, not two.
Where Jul 27, 2026 sits in Schaumburg's hail record
This was Schaumburg's 5th recorded hail day, arriving 24 days after the Jul 3, 2026 storm. By severity it ranks 1st of the 5 storms we have logged here. Radar put the day's largest stone over Schaumburg at 2" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Schaumburg: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Elk Grove Village (5 miles east, up to 1.75"); Bartlett (5 miles west, up to 1.5"); Carol Stream (7 miles south, up to 1.75").
These maps are stills from Schaumburg'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
5 reports Hail size 1.25"
1 SE Schaumburg Cook County
“Report from mPING: Half Dollar (1.25 in.). (LOT)”
— NOAA / SPC storm report
Hail size 1"
1 SE Schaumburg Cook County
“Report from mPING: Quarter (1.00 in.). (LOT)”
— NOAA / SPC storm report
Hail size 1.25"
1 NW Roselle Cook County
“Report from mPING: Half Dollar (1.25 in.). (LOT)”
— NOAA / SPC storm report
Hail size 1"
1 W Medinah DuPage County
“Relayed via mping. (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
The storm tracked east at roughly 5 mph, based on the timing of ground reports.
Hail was reported over 31 minutes, from to .
Reports came from Hanover Park, Roselle, and Medinah — beyond Schaumburg itself.
What 2" hail means for Schaumburg roofs
Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.
What this storm is worth to a roofer
$755M
Potential roof exposure — 62,926 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
315 jobs
Illustrative work
~$4.7M
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 Schaumburg on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Schaumburg 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
Schaumburg hail history
← All hail in Schaumburg 5 recorded storm days in Schaumburg, IL
Other storms in Schaumburg
Jul 3, 2026
1.75" Signatures 1.75" Estimated 0.75"
No ground reports filed 
Jul 2, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
Jun 24, 2026
0.5" Estimated 0.5"
1
ground report 
May 4, 2026
0.75" Signatures 0.75"
No ground reports filed
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.