How big was the hail on July 2, 2026?

The maximum estimated stone size anywhere in Iowa that day was 1.00 inches. 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.

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 the whole of Iowa on a real interactive map with this swath and three years of others already on it. $79/mo, and the canvassing tools come with it.

Iowa · July 2, 2026

Iowa hail map — July 2, 2026

Name: Iowa hail map — July 2, 2026
Creator: HailMate

NOAA radar detected hail of an inch or more over 7 Iowa cities on July 2, 2026. The largest stones — 1.00″, quarter size — fell over Sioux City.

Hail swath map for Sioux City, IA on July 2, 2026 showing 1.00 inch hail. — Swath over Sioux City on July 2, 2026 — 1.00″ hail. Each city below has its own map for this storm.

Cities hit: 7; in Iowa
Largest stone: 1.00″; quarter size
Impact rating: 3/10; from stone size

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

Roofing contractors

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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.

All of Iowa at street level, with this storm already on it
Three years of hail swaths, filterable by stone size
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Homeowners

Did hail hit your address?

This page covers Iowa 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.

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Free, and no account needed to look it up. If hail did hit, you can ask for a free inspection from a vetted local roofer.

Iowa cities hit on July 2, 2026

Sioux City, IA1.00″ · quarter Ames, IA1.00″ · quarter West Des Moines, IA1.00″ · quarter Ankeny, IA1.00″ · quarter Urbandale, IA1.00″ · quarter Marshalltown, IA1.00″ · quarter Johnston, IA1.00″ · quarter

What people on the ground measured in Iowa on July 2, 2026

12 reports filed with the National Weather Service — 4 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

3.50″ baseball size CO-OP Observer
4 ESE Maynard, IA2:01 PM CDTFayette County
2.75″ baseball size Storm Chaser
4 E Maynard, IA2:01 PM CDTFayette County
1.50″ half dollar size Trained Spotter
1 WNW Gowrie, IA3:56 PM CDTWebster County
1.50″ half dollar size Trained Spotter
3 NE Windsor Heights, IA4:40 PM CDTPolk County
1.25″ half dollar size CO-OP Observer
1 SE Windsor Heights, IA4:27 PM CDTPolk County
Delayed report.
1.25″ half dollar size Public
2 W Farley, IA5:24 PM CDTDubuque County
1.00″ quarter size Broadcast Media
Arlington, IA2:27 PM CDTFayette County
Picture relayed from public. Time estimated on radar.
1.00″ quarter size Broadcast Media
Wadena, IA2:38 PM CDTFayette County
Picture relayed from public. Time estimated via radar.
1.00″ quarter size Broadcast Media
Guttenberg, IA2:56 PM CDTClayton County
Picture relayed via the public. Time estimated via radar.
1.00″ quarter size Emergency Mngr
Guttenberg, IA3:00 PM CDTClayton County
1.00″ quarter size Emergency Mngr
Gowrie, IA4:01 PM CDTWebster County
1.00″ quarter size Public
1 NE Windsor Heights, IA4:26 PM CDTPolk County
Report from mPING: Quarter (1.00 in.).

Showing the 12 largest of 16 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 states hit on July 2, 2026

Tennessee2 cities · 1.50″Nebraska1 city · 1.50″Florida11 cities · 1.00″Colorado3 cities · 1.00″South Carolina4 cities · 1.00″Illinois14 cities · 1.00″Alabama1 city · 1.00″Wisconsin3 cities · 1.00″

The full US hail map for July 2, 2026 →

Other Iowa hail days

August 12, 20262 cities · 1.00″August 7, 20262 cities · 1.00″July 27, 20263 cities · 1.00″July 21, 20261 city · 1.00″July 20, 20267 cities · 1.50″July 4, 20261 city · 1.00″July 3, 20263 cities · 1.00″July 1, 20261 city · 1.50″June 30, 20261 city · 1.00″June 28, 20262 cities · 1.00″June 17, 20261 city · 1.00″June 13, 20261 city · 1.00″

Every hail day across Iowa →

FAQ

Iowa hail on July 2, 2026

NOAA radar put hail of an inch or more over 7 Iowa cities that day. The largest stones — 1.00 inches, quarter size — were over Sioux City. Every city hit is listed above with its own stone size.

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