Hail in Schaumburg May 4, 2026
NEXRAD caught this storm: 13 hail signatures up to 0.75". The radar-estimated size surface had no signal to model this day.
0.75"
≈ penny to nickel · the largest NEXRAD radar signature18,193
0
none filedThe 4th most severe storm Schaumburg has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 19 /100
- Homes exposed
- 85 /100
- Ground truth
- 0 /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
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Only the NEXRAD radar-signature surface resolved for May 4, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
Where May 4, 2026 sits in Schaumburg's hail record
This was Schaumburg's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 4th of the 5 storms we have logged here. Radar put the day's largest stone over Schaumburg at 0.75" — the largest NEXRAD radar signature.
The May 4, 2026 convective day was bigger than Schaumburg: the same system put hail over 428 other tracked cities, 239 of them in Illinois. Nearest: Bartlett (5 miles west, up to 0.75"); West Chicago (9 miles southwest, up to 1"); South Elgin (10 miles west, up to 0.75").
These maps are stills from Schaumburg's May 4, 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.
Nobody on the ground filed a report over Schaumburg for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
What 0.75" hail means for Schaumburg roofs
Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.
$218M
Potential roof exposure — 18,193 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.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 May 4, 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
5 recorded storm days in Schaumburg, IL
