How big was the hail on July 27, 2026?

The maximum estimated stone size anywhere in the country that day was 2.00 inches, over Joliet, IL. Sizes vary street to street inside a single swath, so a city's figure is the largest radar estimated anywhere within about 5 miles of it.

Where does this hail data come from?

NOAA radar, ingested directly from the public NOAA archive. The estimated stone size runs about a quarter of an inch against ground truth, which makes it good for deciding where to look and not a substitute for an inspection.

Does this mean roofs were damaged?

Radar measures stone size, not damage. Whether a particular roof was damaged depends on stone size, wind direction, roof age and material — only an inspection settles it. These figures tell you where it is worth looking.

How do I see the actual swath on a map?

A HailMate plan puts a whole state on a real interactive map, with this swath and three years of others already on it. From $79/mo, and the canvassing tools come with it.

United States · July 27, 2026

Hail map — July 27, 2026

Name: US hail map — July 27, 2026
Creator: HailMate

NOAA radar detected hail of an inch or more over 268 cities across 13 states on July 27, 2026. The largest stones — 2.00″, hen egg size — fell over Joliet, IL.

Hail swath map for Joliet, IL on July 27, 2026 showing 2.00 inch hail. — Largest rendered swath of the day: Joliet, IL — 2.00″ hail. Each city below has its own map for this storm.

Roofing contractors

Claim your live interactive hail map

Every address in your state at once — three years of NOAA hail swaths drawn on a map you can zoom, filter and actually work.

HailMate's canvassing map: hail swaths colour-banded by stone size, from yellow through red to purple, laid over a satellite view of a Texas territory, with hail swath and territory controls.

$79/moall of your state, not one storm day

The July 27, 2026 swath — and every other storm since 2023 across your state
GPS door-knocking — pins, photos and who you have already hit
Jobs, contacts, estimates and invoices included
An alert the next time your state gets hit

See the hail map See a sample map first

HailTrace charges $229 for this one day, once. $79 here is all of your state, every day.

States hit: 13
Cities hit: 268
Largest stone: 2.00″; hen egg size
Impact rating: 7/10; from stone size

Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

Homeowners

Did hail hit your address?

This page covers your area as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.

Check my address

Free, and no account needed to look it up. If hail did hit, you'll have the date and the stone size in writing — which is the first thing an adjuster asks for.

States hit on July 27, 2026

Every state where NOAA radar put an inch or more of hail over a city that day, biggest stone first.

Illinois200 cities · 2.00″Wisconsin25 cities · 2.00″Michigan2 cities · 2.00″Indiana12 cities · 1.50″Ohio3 cities · 1.00″Iowa7 cities · 1.00″Colorado1 city · 1.00″Pennsylvania3 cities · 1.00″New York6 cities · 1.00″New Jersey6 cities · 1.00″Virginia1 city · 1.00″Arizona1 city · 1.00″New Mexico1 city · 1.00″

Hardest hit on July 27, 2026

Showing the 24 largest of 268 cities hit. The rest are under their state above.

What people on the ground measured in the US on July 27, 2026

15 reports filed with the National Weather Service — 2 from trained observers or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

4.50″ softball size Public
2 NW Gresham, WI10:28 AM CDTShawano County
Social media image of grapefruit size hail northwest of Gresham. Time estimated from radar.
3.00″ baseball size Broadcast Media
7 S Port Wing, WI2:45 AM CDTBayfield County
3.00″ baseball size Public
2 ESE Sturgeon Bay, WI9:45 AM CDTDoor County
Relayed via WLUK TV. Location estimated.
3.00″ baseball size Public
Algoma, WI10:11 AM CDTKewaunee County
Corrects time of previous hail report from Algoma.
3.00″ baseball size Public
2 NNE Belle Plaine, WI10:50 AM CDTShawano County
Photo received on social media.
3.00″ baseball size Public
Algoma, WI11:11 AM CDTKewaunee County
3.00″ baseball size Trained Spotter
2 WSW Shorewood, IL3:41 PM CDTWill County
Photo shows hail stone at least 3 inches in diameter that fell near Four Seasons Park in Shorewood. Hail stone was collected and frozen 2 minutes after it fell. Multiple other hail stones golf ball size. Time estimated by radar.
2.75″ baseball size Public
7 S Port Wing, WI2:45 AM CDTBayfield County
Report from mPING: Baseball (2.75 in.).
2.75″ baseball size Public
1 ESE Lyndhurst, WI10:25 AM CDTShawano County
Report forwarded via Amateur Radio.
2.75″ baseball size Public
Neosho, WI11:05 AM CDTDodge County
Delayed Report - Photos of hail around 2.75 inch diameter received on social media. Time of 11:05 AM was estimated from radar.
2.75″ baseball size Public
Woodland, IL5:40 PM CDTIroquois County
Photo relayed via social media shows hailstone slightly larger than a baseball. Time estimated by radar.
2.50″ hen egg size Public
1 W Oconomowoc, WI11:21 AM CDTWaukesha County
2.50″ hen egg size Trained Spotter
1 WNW Westmont, IL12:18 PM CDTDuPage County
2.50″ hen egg size Public
3 W Woodland, IL5:33 PM CDTIroquois County
Photo relayed by broadcast media shows hail up to the size of a tennis ball. Time estimated by radar.
2.50″ hen egg size Broadcast Media
1 SSE Milford, IL6:00 PM CDTIroquois County
Photo relayed by broadcast media shows hailstones ranging in size from golf ball to tennis ball size. Time estimated by radar.

Showing the 15 largest of 132 hail reports filed that day.

Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.

Other hail days

September 30, 20261 city · 2.00″September 28, 20261 city · 1.00″September 27, 20264 cities · 1.00″September 26, 20261 city · 1.00″September 25, 20263 cities · 1.00″September 23, 20262 cities · 1.00″September 22, 202617 cities · 1.00″September 21, 202665 cities · 2.00″September 20, 20268 cities · 1.50″September 19, 202637 cities · 1.50″September 18, 202623 cities · 2.00″September 17, 202619 cities · 1.50″

Every state with hail on record →

FAQ

US hail on July 27, 2026

NOAA radar put hail of an inch or more over 268 cities across 13 states on July 27, 2026. The largest stones — 2.00 inches, hen egg size — were over Joliet, IL. Every state hit is listed on this page, and every city under it.

Knock the streets this storm hit

Your whole state at street level, with this swath already on the map — $79/mo, cancel anytime.

One state, everything included · from $79/mo · month-to-month, cancel anytime