Iowa · May 31, 2026

Iowa hail map — May 31, 2026

NOAA radar detected hail of an inch or more over 1 Iowa city on May 31, 2026. The largest stones — 1.00″, quarter size — fell over Sioux City.

Hail swath map for Sioux City, IA on May 31, 2026 showing 1.00 inch hail.
Swath over Sioux City on May 31, 2026 — 1.00″ hail. Each city below has its own map for this storm.
Cities hit
1
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

Work Iowa on the live hail map

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
  • GPS door-knocking, pins, jobs and estimates — the full loop, not a preview
  • Month-to-month, cancel anytime
Get started

One state, one user, everything included. $79/mo, cancel anytime.

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.

Check my address

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 May 31, 2026

Sioux City, IA1.00″ · quarter

What people on the ground measured in Iowa on May 31, 2026

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

  • 1.50″ half dollar size Public
    Hinton, IA11:30 PM CDTPlymouth County

    Report from social media. Time estimated by radar.

  • 1.00″ quarter size Public
    2 NNW Sioux City, IA11:33 PM CDTWoodbury County

    Report via social media.

  • 1.00″ quarter size Law Enforcement
    Woodbine, IA11:56 PM CDTHarrison County
  • 0.70″ penny size Public
    3 N Sioux City, IA11:37 PM CDTWoodbury County

    Caller reported ongoing pea to dime sized hail. Location estimated by radar.

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 May 31, 2026

Arkansas2 cities · 1.00″Missouri1 city · 1.00″
The full US hail map for May 31, 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 2, 20267 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″
Every hail day across Iowa →
FAQ

Iowa hail on May 31, 2026

NOAA radar put hail of an inch or more over 1 Iowa city 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.

Knock the Iowa 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