Hail in Marengo Jul 17, 2026
Hit 17 days agoThe radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Marengo this day.
0.5"
≈ pea to penny · radar-estimated size aloft161
0
none filedThe 6th most severe storm Marengo 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
- 44 /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 Marengo saw the hail — from two instruments
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Only the radar-estimated size surface resolved for Jul 17, 2026 — this storm produced no NEXRAD point detections over Marengo, so there is one map to show, not two.
Where Jul 17, 2026 sits in Marengo's hail record
This was Marengo's 8th recorded hail day, arriving 13 days after the Jul 4, 2026 storm. By severity it ranks 6th of the 9 storms we have logged here. Radar put the day's largest stone over Marengo at 0.5" — radar-estimated size aloft.
The Jul 17, 2026 convective day was bigger than Marengo: the same system put hail over 415 other tracked cities, 2 of them in Illinois. Nearest: Mokena (60 miles southeast, up to 0.5"); Paw Paw (138 miles east, up to 0.5"); Wayland (152 miles east, up to 0.75").
These maps are stills from Marengo's Jul 17, 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 Marengo 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 Marengo 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.
$1.9M
Potential roof exposure — 161 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Marengo on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Marengo storm history — this Jul 17, 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
9 recorded storm days in Marengo, IL
Other storms in Marengo
Jul 27, 2026
1"
Jul 4, 2026
1"
Jul 2, 2026
0.5"
Jun 11, 2026
0.5"
Jun 5, 2026
Apr 14, 2026
0.75"
Apr 2, 2026
Mar 30, 2026
1"