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Storm Activity›South Dakota Storm Activity›Custer County, SD
South Dakota · Official NOAA Storm Data

Custer County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Nov 1, 2026

Has it hailed in Custer County, South Dakota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 16 hail reports with hail up to 3.6", among 28 severe weather events logged here in the last 12 months, together with 12 high-wind reports with gusts up to 67 mph. The most recent recorded storm activity was on Sep 7, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

Map of Custer County, South Dakota showing the county boundary and surrounding cities
Custer County, South Dakota. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Custer County hail map

Where hail and high-wind reports clustered across Custer County over the last 12 months. Heat shows report density and significance, not radar.

28
Events (12 mo)
16
Hail
12
Wind
0
Tornado
3.6"
Max hail
67
Max wind (mph)
Sep 7, 2026
Most recent

What the radar showed

Radar snapshot during the Aug 11, 2026 hail event near 2 SSW Hermosa, Custer County, South Dakota, with NWS warning polygons
NEXRAD radar at the moment of the Aug 11, 2026 hail event (3.6") near 2 SSW Hermosa. Outlined polygons are the storm-based warnings exactly as issued by the National Weather Service. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Storm exposure for an address in Custer County

Get a free report in your folder. A city is enough if you do not have a street.

Storm log — the official record, day by day

Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.

Monday, September 7, 2026

1 SPC verified storm report

“Two trees down. Damage to garage roof. Time estimated based on radar. (UNR)”

SPC verified report · Fairburn

Sunday, August 23, 2026

2 SPC verified storm reports — hail up to 1.75"

NEXRAD radar during the Sunday, August 23, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Via social media. Time estimated based on radar. (UNR)”

SPC verified report · Hermosa

Tuesday, August 11, 2026

6 SPC verified storm reports — hail up to 3.6", wind gusts up to 60 mph

NEXRAD radar during the Tuesday, August 11, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Measured along Highway 79 a bit further north than previous report. Via Spotter Network. Time estimated based on radar. (UNR)”

SPC verified report · 2 SSW Hermosa

“Reported via Spotter Network along Riverside Rd. Time adjusted based on radar. (UNR)”

SPC verified report · 13 E Buffalo Gap

Friday, July 31, 2026

2 SPC verified storm reports — hail up to 1.75"

NEXRAD radar during the Friday, July 31, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Report and photo via social media confirming golf ball size hail fell in Argyle. Time estimated based on radar. (UNR)”

SPC verified report · Argyle

Tuesday, July 28, 2026

6 SPC verified storm reports — wind gusts up to 65 mph

NEXRAD radar during the Tuesday, July 28, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Tree down along Wildlife Loop Rd. Power out. Report via social media. Time estimated based on radar. (UNR)”

SPC verified report · 9 WNW Fairburn

“Branches broken off of trees. Localized flooding at RV sites. (UNR)”

SPC verified report · 7 ENE Custer

Saturday, July 4, 2026

2 SPC verified storm reports — hail up to 2.25"

NEXRAD radar during the Saturday, July 4, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“1 Inj Hail lasted 30 minutes. Ground covered. Numerous stones larger than golf ball size. Largest stones estimated at over 2 inches in diameter per photos. 1 pe (UNR)”

SPC verified report · 5 NNW Pringle

Friday, July 3, 2026

5 SPC verified storm reports — hail up to 1.25", wind gusts up to 60 mph

NEXRAD radar during the Friday, July 3, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Photo submitted via social media. Time estimated based on radar. (UNR)”

SPC verified report · 2 WNW Custer

“Most stones dime size. A few quarters mixed in. Video via social media. Time estimated based on radar. (UNR)”

SPC verified report · 4 NNW Custer

Monday, June 22, 2026

1 SPC verified storm report — hail up to 1"

Saturday, June 6, 2026

1 SPC verified storm report — wind gusts up to 59 mph

NEXRAD radar during the Saturday, June 6, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Wednesday, April 22, 2026

2 SPC verified storm reports — wind gusts up to 67 mph

NEXRAD radar during the Wednesday, April 22, 2026 storm activity in Custer County, South Dakota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Today's severe weather outlook

Storm Prediction Center Day 1 convective outlook — national severe weather risk map for today
Storm Prediction Center Day 1 convective outlook: categorical severe weather risk for today, updated several times daily. Source: NOAA/NWS Storm Prediction Center.

Common questions

When was the last severe storm in Custer County, SD?

The most recent recorded event was on Sep 7, 2026. Official NWS and SPC records show 28 severe weather events in Custer County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.

Did it hail in Custer County recently?

Yes — 16 hail reports in the last 12 months, with hail up to 3.6" recorded. The hail map above shows where reports clustered; the storm log lists each day.

How do I see hail history for a specific address in Custer County?

Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property, including the most recent 30 days — county-level pages like this one only tell part of the story.

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Proudly AI-powered. Honestly sourced. IDOLCheck is built by HailyAI. Every storm event, magnitude, radar snapshot, and date on this page is deterministic — retrieved directly from official NOAA, National Weather Service (NWS), and Storm Prediction Center (SPC) storm records through HailyAPI and displayed exactly as reported. Quoted warning and report text is always attributed to its official source. Where the surrounding copy is not a direct quote, it was generated with AI assistance from that same verified storm data and reviewed and approved by humans before publication. AI organizes and presents the record — it never invents storm data.
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