Hail size 2"
2 SE Niantic Macon County
“(ILX)”
— NOAA / SPC storm report
Hail in Decatur Jun 17, 2026
The radar-estimated size surface caught this storm, reaching 2.75" aloft. NEXRAD logged no point detections over Decatur this day. At 2.75" — baseball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
Largest hailstone
2.75"
≈ baseball · radar-estimated size aloft Homes in the hail footprint
33,875
Ground reports
9
8 hail · 1 windThe most severe storm Decatur 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.
7.9 /10
- Hail size
- 69 /100
- Homes exposed
- 91 /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 Decatur saw the hail — from two instruments
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
Radar-estimated hail size
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
2.75"
Only the radar-estimated size surface resolved for Jun 17, 2026 — this storm produced no NEXRAD point detections over Decatur, so there is one map to show, not two.
Where Jun 17, 2026 sits in Decatur's hail record
This was Decatur's 7th recorded hail day, arriving 6 days after the Jun 11, 2026 storm. By severity it ranks 1st of the 8 storms we have logged here. Radar put the day's largest stone over Decatur at 2.75" — radar-estimated size aloft.
The Jun 17, 2026 convective day was bigger than Decatur: the same system put hail over 294 other tracked cities, 134 of them in Illinois. Nearest: Argenta (9 miles northeast, up to 1.75"); Macon (11 miles south, up to 1.75"); Maroa (11 miles north, up to 0.75").
These maps are stills from Decatur's Jun 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.
Hail reports
8 reports Hail size 1.5"
Elwin Macon County
“Ping Pong size hail. (ILX)”
— NOAA / SPC storm report
Hail size 1.5"
Boody Macon County
“Corrects previous hail report from Boody. Photo of ping pong size hail with a ruler. Time estimated from radar. (ILX)”
— NOAA / SPC storm report
Hail size 1.75"
Boody Macon County
“Golf ball size hail near route 48 outside of Boody. (ILX)”
— NOAA / SPC storm report
Hail size 1.5"
Boody Macon County
“Photo of ping pong size hail with a ruler. (ILX)”
— NOAA / SPC storm report
Hail size 1"
2 W Decatur Macon County
“Report from mPING: Quarter (1.00 in.). (ILX)”
— NOAA / SPC storm report
Hail size 1"
1 W Decatur Macon County
“(ILX)”
— NOAA / SPC storm report
Hail size 1"
Decatur Airport Macon County
“(ILX)”
— NOAA / SPC storm report
Wind reports
1 report Wind gust 78 mph
Decatur Airport Macon County
“(ILX)”
— 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 northeast at roughly 10 mph, based on the timing of ground reports.
Hail was reported over 75 minutes, from to .
Reports came from Niantic, Elwin, Boody, and Decatur Airport — beyond Decatur itself.
What 2.75" hail means for Decatur 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
$407M
Potential roof exposure — 33,875 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Illustrative jobs
169 jobs
Illustrative work
~$2.5M
Claims from this storm can typically be filed until around June 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Track hail over Decatur on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Decatur storm history — this Jun 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
Decatur hail history
← All hail in Decatur 8 recorded storm days in Decatur, IL
Other storms in Decatur
Jul 3, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
Jun 11, 2026
0.5" Estimated 0.5"
No ground reports filed 
Jun 10, 2026
0.5" Estimated 0.5"
No ground reports filed 
May 4, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed 
Apr 27, 2026
2" Signatures 2" Estimated 0.75"
2
ground reports 
Mar 31, 2026
1" Signatures 1"
No ground reports filed 
Mar 3, 2026
0.5" Estimated 0.5"
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.