Rapid City, SD

Hail map for Rapid City, SD — August 18, 2025

NOAA radar detected hail up to 1.00″ — quarter size — within 5 miles of Rapid City on August 18, 2025.

Hail swath map for Rapid City, SD on August 18, 2025 showing 1.00 inch hail.
Max hail size
1.00″
quarter
Impact rating
3/10
from stone size
Size bands over the city
1
distinct radar bands
Measured on the ground
3.25″
12.5 mi away · Co-Op Observer

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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Homeowners

Did hail hit your address?

This page covers Rapid City 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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Other towns hit on August 18, 2025

Houston, TX1.00″Cypress, TX1.00″Enid, OK1.00″The Villages, FL1.00″Wentzville, MO1.00″Nacogdoches, TX1.00″
Every South Dakota city hit on August 18, 2025 →

Other hail dates for Rapid City

August 18, 20261.50″August 16, 20261.00″August 11, 20261.00″July 1, 20261.00″June 22, 20261.50″February 28, 20261.00″July 23, 20251.50″July 19, 20251.00″July 14, 20251.00″July 1, 20252.00″September 15, 20241.00″August 19, 20241.00″
Every storm over Rapid City →

What people on the ground measured in Rapid City, SD on August 18, 2025

6 reports filed with the National Weather Service — 2 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.

  • 3.25″ baseball size Co-Op Observer
    1 ESE Pactola Res, SD · 12.5 mi away3:55 PM CDTPennington County
  • 2.50″ hen egg size NWS Employee
    1 N Hisega, SD · 8.5 mi away4:10 PM CDTPennington County

    Rear window of vehicle has several holes in it.

  • 1.50″ half dollar size Public
    Johnson Siding, SD · 10.4 mi away4:00 PM CDTPennington County

    mPING report

  • 1.00″ quarter size NWS Employee
    4 S Dwtn Rapid City, SD · 4.2 mi away4:37 PM CDTPennington County

    mPING report

  • 1.00″ quarter size Public
    5 SW Dwtn Rapid City, SD · 5.1 mi away4:27 PM CDTPennington County

    mPING report

  • 0.75″ penny size Public
    3 N Sheridan Lake, SD · 13.1 mi away4:07 PM CDTPennington County

    mPING report

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.

FAQ

Rapid City hail on August 18, 2025

NOAA radar estimated stones up to 1.00 inches — quarter size — within about 5 miles of Rapid City that day, across 1 distinct size band. Sizes vary street to street inside a single swath.

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