Jefferson County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 11, 2026
Jefferson County, Illinois has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 2 tornado reports among 43 severe weather events here in the last 12 months, alongside 8 hail reports with hail up to 1.75" and 33 high-wind reports with gusts up to 60 mph. The most recent recorded storm activity was in August 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
What the radar showed
Last 30 days in Jefferson County
Recent storms — full detail available in the app
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
See the specifics — free →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.
Saturday, July 4, 2026
1 NWS warning — wind gusts up to 50 mph
“At 406 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Helm to near Mount Vernon to near Sesser. Movement was east at 25 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Jefferson County NWS severe weather mention
Sunday, June 21, 2026
3 SPC verified storm reports — 2 tornado reports
“2 FATAL... 5 INJ EF3 Tornado. Peak winds 140 mph. Track 13.8 miles. Several mobile homes destroyed. Severe tree damage... power poles snapped. (PAH)”
“Photo submission of tornado on Facebook by Texico. (PAH)”
- Tornado Tornado 2 SSE Dix SPC verified report
- Tornado Tornado 3 E Dix SPC verified report
- Wind Unknown 5 NW Bluford SPC verified report
Monday, June 1, 2026
2 NWS warnings — hail up to 0.75", wind gusts up to 50 mph
“At 709 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Du Quoin to Womac. Movement was southeast at 50 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“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...”
- Wind 50 mph Jefferson County NWS severe weather mention
- Hail 0.75" Jefferson County NWS severe weather mention
Saturday, May 16, 2026
2 SPC verified storm reports · 1 NWS warning — hail up to 1.75"
“Hail up to the size of golf balls damaged vehicles and roofs along Highway 37 between Mt Vernon and Dix. (PAH)”
“At 437 PM CDT, Doppler radar was tracking a strong thunderstorm 9 miles west of Helm, or 10 miles south of Salem, moving east at 30 mph. Hazard: Wind gusts up to 40 mph, half inch hail, heavy rain. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Localized street flooding is possible. Locations impacted include...”
- Hail 1.75" 3 SSE Dix SPC verified report
- Hail 1" 5 SE Dix SPC verified report
- Hail 0.5" Jefferson County NWS severe weather mention
Monday, May 4, 2026
1 NWS warning — wind gusts up to 50 mph
“At 621 PM CDT, Doppler radar was tracking thunderstorms along a line extending from near Mannon to near Batavia. Movement was east at 30 mph. Hazard: Wind gusts up to 50 mph. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Jefferson County NWS severe weather mention
Monday, April 27, 2026
1 NWS warning — wind gusts up to 50 mph
“Gusty winds are expected late this morning into the early afternoon as an area of rain and embedded thunderstorms continues to shift eastward through portions of eastern Iowa and northwest Illinois. Winds will increase on the western edge of the shield of precipitation with gusts between 40 to 50 mph possible out of an east to southeasterly direction.”
- Wind 50 mph Jefferson County NWS severe weather mention
Sunday, April 26, 2026
1 SPC verified storm report — hail up to 1"
- Hail 1" 2 ENE Mount Vernon SPC verified report
Sunday, April 12, 2026
1 NWS warning — wind gusts up to 50 mph
“Strong south-southwesterly winds will continue this afternoon through the early evening hours, with occasional gusts as high as 45 mph. There are also some developing showers and a few isolated thunderstorms this afternoon that could help generate stronger wind gusts up to 50 mph. If traveling on east-to-west oriented roads, be prepared for gusty crosswinds, especially in high profile vehicles.”
- Wind 50 mph Jefferson County NWS severe weather mention
Monday, March 16, 2026
2 NWS warnings — wind gusts up to 60 mph
“WHAT...Northwest winds 25 to 30 mph with gusts up to 60 mph. WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. WHEN...Until 6 AM CDT early this morning. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
“WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph. WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. WHEN...Until noon CDT today. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 60 mph Jefferson County NWS severe weather mention
- Wind 55 mph Jefferson County NWS severe weather mention
Sunday, March 15, 2026
8 NWS warnings — wind gusts up to 60 mph
“WHAT...Northwest winds 25 to 35 mph with gusts of 50 to 60 mph expected. WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. WHEN...Until 10 AM CDT Monday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
“WHAT...Northwest winds 25 to 35 mph with gusts of 50 to 60 mph expected. WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. WHEN...Until 10 AM CDT Monday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph Jefferson County NWS severe weather mention
- Wind 60 mph Jefferson County NWS severe weather mention
- Wind 60 mph Jefferson County NWS severe weather mention
- Wind 60 mph Jefferson County NWS severe weather mention
- Wind 60 mph Jefferson County NWS severe weather mention
- Wind 55 mph Jefferson County NWS severe weather mention
- Wind 50 mph Jefferson County NWS severe weather mention
- Wind 50 mph Jefferson County NWS severe weather mention
Saturday, March 14, 2026
1 SPC verified storm report · 1 NWS warning — wind gusts up to 50 mph
“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.”
“Late report. Grain bin blown over and barn roof tossed roughly 75 feet along Lynchburg Road. (PAH)”
- Wind 50 mph Jefferson County NWS severe weather mention
- Wind Unknown 4 ESE Mount Vernon SPC verified report
Wednesday, March 11, 2026
1 SPC verified storm report · 1 NWS warning — hail up to 0.25"
“At 1151 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Cisne to Woodlawn to Pinckneyville. Movement was east 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...”
“Tree down on a power line which has caused some power outages. (PAH)”
- Hail 0.25" Jefferson County NWS severe weather mention
- Wind Unknown Waltonville SPC verified report
Tuesday, March 10, 2026
3 SPC verified storm reports
“Trees down in Jefferson County. One of the trees is across Hwy 15. (PAH)”
“Trees down in Jefferson County. One of the trees is across Hwy 15. (PAH)”
- Wind Unknown 1 E Mount Vernon SPC verified report
- Hail Unknown 1 E Mount Vernon SPC verified report
- Wind Unknown Dix SPC verified report
Wednesday, February 18, 2026
3 NWS warnings — wind gusts up to 50 mph
“...Critical Fire Weather Conditions Continue... AFFECTED AREA...Portions of eastern Iowa, northwest Illinois, and northeast Missouri. TIMING...Until 8 PM CST this evening. WINDS...West-southwest winds 25 to 30 mph, with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 15 percent. IMPACTS...Any fire that develops will quickly spread out of control. Fire behavior is expected to be extreme.”
“...Critical Fire Weather Conditions Today... AFFECTED AREA...Portions of eastern Iowa and northwest Illinois TIMING...From Wednesday morning through Wednesday evening. WINDS...Southwest 20 to 30 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 15 percent. IMPACTS...Any fire that develops will catch and spread quickly. Fire behavior is expected to be extreme.”
- Wind 50 mph Jefferson County NWS severe weather mention
- Wind 50 mph Jefferson County NWS severe weather mention
- Wind 50 mph Jefferson County NWS severe weather mention
Tuesday, February 17, 2026
1 NWS warning — wind gusts up to 50 mph
“...Critical Fire Weather Conditions Possible Wednesday... The National Weather Service in the Quad Cities continues a Fire Weather Watch for strong winds, low relative humidity, and plentiful dry vegetation. AFFECTED AREA...Portions of eastern Iowa and northwest Illinois TIMING...From Wednesday morning through Wednesday evening. WINDS...Southwest 20 to 30 mph with gusts up to 50 mph.”
- Wind 50 mph Jefferson County NWS severe weather mention
Friday, January 9, 2026
1 NWS warning — wind gusts up to 50 mph
“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...”
- Wind 50 mph Jefferson County NWS severe weather mention
Thursday, January 8, 2026
1 NWS warning — wind gusts up to 50 mph
“At 1158 PM CST, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles east of Centralia to 7 miles southwest of Woodlawn. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Mount Vernon, Woodlawn, Bluford, Dix, and Waltonville.”
- Wind 50 mph Jefferson County NWS severe weather mention
Sunday, December 28, 2025
2 NWS warnings — wind gusts up to 55 mph
“WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west to northwest winds 25 to 35 mph with gusts up to 45 to 55 mph expected. WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. WHEN...For the Dense Fog Advisory, until 6 AM CST early this morning.”
“WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west to northwest winds 25 to 35 mph with gusts up to 45 to 55 mph expected. WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. WHEN...For the Dense Fog Advisory, until 6 AM CST early this morning.”
- Wind 55 mph Jefferson County NWS severe weather mention
- Wind 55 mph Jefferson County NWS severe weather mention
Saturday, December 27, 2025
1 SPC verified storm report · 2 NWS warnings — wind gusts up to 55 mph
“WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west to northwest winds 25 to 35 mph with gusts up to 45 to 55 mph expected. WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. WHEN...For the Dense Fog Advisory, until 6 AM CST Sunday. For the Wind Advisory, from 2 PM Sunday to 6 PM CST Monday.”
“WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, west to northwest winds 25 to 35 mph with gusts up to 45 to 55 mph expected. WHERE...Portions of west central Illinois, southeast Iowa, and northeast Missouri. WHEN...For the Dense Fog Advisory, until 6 AM CST Sunday. For the Wind Advisory, from 2 PM Sunday to 6 PM CST Monday.”
- Wind 55 mph Jefferson County NWS severe weather mention
- Wind 55 mph Jefferson County NWS severe weather mention
- Wind Unknown 2 NNW Mount Vernon SPC verified report
Monday, September 22, 2025
1 NWS warning — hail up to 0.5"
“At 1156 PM CDT, Doppler radar was tracking a line of thunderstorms along a line extending from Lone Tree to near Abingdon. Movement was east at 45 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could cause minor tree limb damage and blow around unsecured objects. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...”
- Hail 0.5" Jefferson County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Jefferson County, IL?
The most recent recorded event was in August 2026. Official NWS and SPC records show 43 severe weather events in Jefferson County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in Jefferson County recently?
Yes — 8 hail reports in the last 12 months, with hail up to 1.75" recorded.
How do I check whether a specific address was affected?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.