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Storm ActivityIllinois Storm ActivityWilliamson County, IL
Illinois · Official NOAA Storm Data

Williamson County Hail Map & Storm Reports

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

Looking for storm and wind reports in Williamson County, Illinois? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records show 18 severe weather events in the last 12 months — 13 high-wind reports with gusts up to 65 mph, plus 5 hail reports with hail up to 0.75". The most recent recorded storm activity was on Jul 10, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Williamson County hail map

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

18
Events (12 mo)
5
Hail
13
Wind
0
Tornado
0.75"
Max hail
65
Max wind (mph)
Jul 10, 2026
Most recent

What the radar showed

Radar snapshot during the Mar 14, 2026 wind event near Cambria, Williamson County, Illinois, with NWS warning polygons
NEXRAD radar at the moment of the Mar 14, 2026 wind event (65 mph) near Cambria. 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.

Hail history for an address in Williamson County

See address-level storm exposure — verified hail and wind reports plus official warning boundaries around any specific property, including the most recent 30 days. Free account, takes under a minute.

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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.

Friday, July 10, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Friday, July 10, 2026 storm activity in Williamson County, Illinois
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 819 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Willisville to near Pittsburg. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Williamson County

Thursday, July 9, 2026

1 SPC verified storm report

“Tree down across North Fair Street just north of Main Street in Marion. (PAH)”

SPC verified report · 1 E Marion

Saturday, July 4, 2026

1 NWS warning — hail up to 0.25"

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

“At 350 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Galatia to near Carrier Mills to near Creal Springs. Movement was east at 20 mph. Hazard: Wind gusts up to 40 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Williamson County

Friday, July 3, 2026

1 NWS warning — wind gusts up to 50 mph

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

“At 814 PM CDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Creal Springs to 7 miles southeast of Harrisburg. Movement was northeast at 20 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Harrisburg, Eldorado, Carrier Mills, Stonefort, and Muddy.”

NWS severe weather mention · Williamson County

Sunday, June 21, 2026

1 NWS warning — hail up to 0.25"

“At 157 PM CDT, Doppler radar was tracking a strong thunderstorm near Goreville, or 11 miles southwest of Marion, moving northeast at 30 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Lake Of Egypt Area.”

NWS severe weather mention · Williamson County

Friday, June 12, 2026

1 NWS warning — hail up to 0.5"

NEXRAD radar during the Friday, June 12, 2026 storm activity in Williamson County, Illinois
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 232 AM CDT, Doppler radar was tracking a strong thunderstorm 8 miles northeast of Cobden, or 9 miles southeast of Carbondale, moving east at 30 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Williamson County

Monday, June 1, 2026

1 NWS warning — hail up to 0.75"

NEXRAD radar during the Monday, June 1, 2026 storm activity in Williamson County, Illinois
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 626 AM CDT, Clusters of strong thunderstorms were moving in from the northwest and are expected to impact the area through early this morning. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Williamson County

Monday, April 27, 2026

1 NWS warning — hail up to 0.25"

“At 344 PM CDT, Doppler radar was tracking showers and developing thunderstorms along a line extending from near Dongola to near Chaffee. Movement was northeast at 45 mph. This activity is a zone of concern for rapid development for severe storms in the next hour or so. Remain alert for possible warnings. Locations impacted include...”

NWS severe weather mention · Williamson County

Sunday, April 26, 2026

1 SPC verified storm report

“Tree limbs down... roof damage to homes and a an outbuilding in the Forest Park neighborhood of Herrin. Time estimated from radar. (PAH)”

SPC verified report · 1 S Energy

Sunday, March 15, 2026

3 NWS warnings — wind gusts up to 60 mph

“WHAT...South winds 15 to 25 mph with gusts up to 60 mph. WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. WHEN...Until 9 PM CDT this evening. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Williamson County

“WHAT...South winds 25 to 35 mph with gusts to 60 mph. WHERE...Bollinger, Cape Girardeau and Perry Counties in Missouri, and Union, Jackson, Perry, Jefferson, Franklin, Williamson, Johnson, Saline, Hamilton and Wayne Counties in iLlinios WHEN...Until 1 PM CDT this afternoon. A wind advisory or additional high wind warning will be required after 1 pm.”

NWS severe weather mention · Williamson County

Saturday, March 14, 2026

2 SPC verified storm reports · 1 NWS warning — wind gusts up to 65 mph

NEXRAD radar during the Saturday, March 14, 2026 storm activity in Williamson County, Illinois
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Multiple reports of winds estimated to 60-65mph in and just west of Cambria. (PAH)”

SPC verified report · Cambria

“WHAT...South winds 15 to 25 mph with gusts up to 40 to 50 mph. WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. WHEN...From 10 AM CDT /11 AM EDT/ Sunday to 7 AM CDT /8 AM EDT/ Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Williamson County

Wednesday, March 11, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Southwest winds 15 to 25 mph with gusts of 40 to 50 mph. WHERE...Portions of southern Illinois, western Kentucky, and southeast Missouri. WHEN...Until 4 PM CDT this afternoon. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Williamson County

Friday, January 9, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Friday, January 9, 2026 storm activity in Williamson County, Illinois
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 111 AM CST, Doppler radar was tracking strong thunderstorms along a line extending from 7 miles south of Bluford to 6 miles north of Ware. Movement was east at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Williamson County

Sunday, December 28, 2025

1 NWS warning — wind gusts up to 55 mph

NEXRAD radar during the Sunday, December 28, 2025 storm activity in Williamson County, Illinois
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 614 PM CST, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles west of Carrier Mills to near Morehouse. Movement was east at 45 mph. This line is close to severe and brief intensification are possible. The line is also being monitored closely for any sign of tornado potential. Hazard: Wind gusts of 50 to 55 mph.”

NWS severe weather mention · Williamson County

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 Williamson County, IL?

The most recent recorded event was on Jul 10, 2026. Official NWS and SPC records show 18 severe weather events in Williamson 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 Williamson County recently?

Yes — 5 hail reports in the last 12 months, with hail up to 0.75" 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 Williamson 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 our HailyDB engine 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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