Hail in Granite City Jul 27, 2026
Hit 7 days agoThe radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Granite City this day.
0.5"
≈ pea to penny · radar-estimated size aloft444
0
none filedThe 2nd most severe storm Granite City 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
- 13 /100
- Homes exposed
- 53 /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 Granite City 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.
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.
Only the radar-estimated size surface resolved for Jul 27, 2026 — this storm produced no NEXRAD point detections over Granite City, so there is one map to show, not two.
Where Jul 27, 2026 sits in Granite City's hail record
This was Granite City's 2nd recorded hail day, arriving 57 days after the May 31, 2026 storm. By severity it ranks 2nd of the 2 storms we have logged here. Radar put the day's largest stone over Granite City at 0.5" — radar-estimated size aloft.
The Jul 27, 2026 convective day was bigger than Granite City: the same system put hail over 803 other tracked cities, 130 of them in Illinois. Nearest: Collinsville (5 miles east, up to 0.5"); Hartford (7 miles north, up to 0.5"); Saint Louis (21 miles southwest, up to 1").
These maps are stills from Granite City'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.
Nobody on the ground filed a report over Granite City 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 0.5" hail means for Granite City roofs
Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.
$5.3M
Potential roof exposure — 444 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Granite City on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Granite City 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
2 recorded storm days in Granite City, IL
