Winnebago County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 12, 2026
Winnebago County, Illinois has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 5 tornado reports among 49 severe weather events here in the last 12 months, alongside 5 hail reports with hail up to 2.25" and 39 high-wind reports with gusts up to 62 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 Winnebago 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.
Friday, July 3, 2026
2 SPC verified storm reports
“Multiple photos and reports of downed trees and power lines in and around Rockton including near MacTown Forest Preserve and Settlers Park. Time estimated by radar. (LOT)”
“Photos relayed by broadcast media show large trees snapped in the vicinity of Williamson Parkway and S Blackhawk Blvd. (LOT)”
- Wind Unknown Rockton SPC verified report
- Wind Unknown Rockton SPC verified report
Thursday, June 11, 2026
1 SPC verified storm report — wind gusts up to 62 mph
“Peak gust measured on personal weather station. (LOT)”
- Wind 62 mph 4 NE Winnebago SPC verified report
Monday, April 27, 2026
2 NWS warnings — wind gusts up to 60 mph
“WHAT...Southeast winds 20 to 25 mph with gusts up to 50 mph expected. WHERE...Portions of north central and northeast Illinois and northwest Indiana. 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. ADDITIONAL DETAILS...The potential exists for brief localized gusts up to 55 to 60 mph.”
“WHAT...Southeast to south winds 20 to 25 mph with gusts up to 50 mph. WHERE...Portions of north central and northeast Illinois and northwest Indiana. 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.”
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 50 mph Winnebago County NWS severe weather mention
Friday, April 17, 2026
8 SPC verified storm reports — hail up to 2.25", 3 tornado reports
“Multiple photos and videos shared via social media show tornado on the ground between Harrison and Rockton. (LOT)”
“An NWS damage survey confirmed than a high-end EF-1 tornado with peak winds of 110 mph... path length of 3.74 miles... and maximum width of 125 yards damaged trees and (LOT)”
- Tornado Tornado 3 ESE Shirland SPC verified report
- Tornado Tornado 4 S Shirland SPC verified report
- Tornado Tornado 3 N Pecatonica SPC verified report
- Hail 2.25" 2 NE Lake Summerset SPC verified report
- Hail 1.5" South Beloit SPC verified report
- Wind Unknown 5 NNW Pecatonica SPC verified report
- Wind Unknown 3 SSE Shirland SPC verified report
- Wind Unknown Durand SPC verified report
Thursday, April 16, 2026
4 SPC verified storm reports — wind gusts up to 62 mph, 2 tornado reports
“Tornado on the ground visible from IL-173 and Belvidere Road looking north. Relayed by amateur radio. (LOT)”
“An NWS Damage survey confirmed an EF-1 tornado with peak winds of 95 mph... path length of 11.2 miles... and maximum width of 350 yards damaged trees and buildings incl (LOT)”
- Tornado Tornado 2 ESE Roscoe SPC verified report
- Tornado Tornado 3 SE Shirland SPC verified report
- Wind 62 mph Rockford Airport SPC verified report
- Wind Unknown 2 W Roscoe SPC verified report
Tuesday, April 14, 2026
2 SPC verified storm reports — hail up to 1"
“Possible tornado. Numerous trees damaged along Murphy Road... west of S Conger Road. (LOT)”
- Hail 1" Winnebago SPC verified report
- Wind Unknown 2 SE Seward SPC verified report
Monday, April 13, 2026
2 SPC verified storm reports — hail up to 1"
“relayed by broadcast media. time estimated by radar. (LOT)”
“Photo shared on social media showing a tree uprooted in Durand. Time estimated from radar. (LOT)”
- Hail 1" Pecatonica SPC verified report
- Wind Unknown Durand SPC verified report
Tuesday, March 31, 2026
1 NWS warning — wind gusts up to 50 mph
“A mesoscale low pressure center has developed in southern Wisconsin and is producing some strong southwest wind gusts behind the line of showers and thunderstorms. Expect a period of 40-50 mph wind gusts to occur in portions of Winnebago, Boone, Ogle, and Lee counties over the next few hours. Use caution if driving high profile vehicles in these areas and secure lose objects.”
- Wind 50 mph Winnebago County NWS severe weather mention
Sunday, March 15, 2026
1 NWS warning — wind gusts up to 50 mph
“WHAT...Blizzard conditions expected. Total snow accumulations between 4 and 7 inches and ice accumulations around a light glaze. Winds gusting as high as 45 to 50 mph. WHERE...Boone, Lee, Ogle, and Winnebago Counties. WHEN...From 10 PM this evening to 1 PM CDT Monday. IMPACTS...Whiteout conditions are expected and will make travel treacherous and potentially life-threatening.”
- Wind 50 mph Winnebago County NWS severe weather mention
Friday, March 13, 2026
3 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 30 to 35 mph with gusts up to 60 mph occurring. WHERE...Portions of north central and northeast Illinois and northwest Indiana. WHEN...Until 4 PM CDT this afternoon. IMPACTS...Damaging winds may blow down tree limbs and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles.”
“WHAT...West winds 30 to 35 mph with gusts up to 60 mph expected. WHERE...Portions of north central and northeast Illinois and northwest Indiana. WHEN...Until 4 PM CDT this afternoon. IMPACTS...Damaging winds may blow down tree limbs and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 50 mph Winnebago County NWS severe weather mention
Thursday, March 12, 2026
3 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 30 to 35 mph with gusts up to 60 mph expected. WHERE...Portions of north central and northeast Illinois and northwest Indiana. WHEN...From 1 AM to 4 PM CDT Friday. IMPACTS...Damaging winds can blow down tree limbs and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles.”
“WHAT...West winds 30 to 35 mph with gusts up to 60 mph expected. WHERE...Boone, De Kalb, La Salle, Lee, Ogle, Winnebago, and Grundy Counties. WHEN...From 1 AM to 4 PM CDT Friday. IMPACTS...Damaging winds can blow down tree limbs and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 50 mph Winnebago County NWS severe weather mention
Monday, March 9, 2026
1 SPC verified storm report
“Public report of snapped trees (approx 12 inch in diameter)... roof damage... solar panels ripped off a roof... and siding peeled back. Time estimated by radar. (LOT)”
- Wind Unknown 5 NE Pecatonica SPC verified report
Saturday, March 7, 2026
1 NWS warning — wind gusts up to 50 mph
“A fast-moving area of steady showers with some embedded lightning will move move into the area through 1 to 2 AM. This area of showers has been producing measured wind gusts of 40 to locally near 55 mph. These showers are moving to the northeast around 40 to 50 mph.”
- Wind 50 mph Winnebago County NWS severe weather mention
Wednesday, February 18, 2026
2 NWS warnings — wind gusts up to 50 mph
“...RED FLAG WARNING EXPANDED TO INCLUDE CHICAGO METRO... Conditions will turn very dry and windy this afternoon, making conditions supportive of brush fire spread. Even with rainfall last night generally 0.05 to 0.15 of an inch across northeastern Illinois, the combination of warm, dry, and windy conditions will cause fine fuels to dry out by early afternoon.”
“WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Ogle and Winnebago Counties. WHEN...Until 6 PM CST this evening. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 50 mph Winnebago County NWS severe weather mention
- Wind 50 mph Winnebago County NWS severe weather mention
Monday, December 29, 2025
1 NWS warning — wind gusts up to 55 mph
“WHAT...West winds 25 to 35 mph with gusts of 45 to 55 mph early this morning, easing to occasional gusts to around 45 mph by mid morning. WHERE...Northern and central Illinois and extreme northwest Indiana WHEN...Until noon CST today. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 55 mph Winnebago County NWS severe weather mention
Sunday, December 28, 2025
3 NWS warnings — wind gusts up to 55 mph
“WHAT...West winds 25 to 35 mph with gusts of 45 to 55 mph expected. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...Until 3 PM CST /4 PM EST/ Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
“WHAT...West winds 25 to 35 mph with gusts of 45 to 55 mph expected. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...From 6 PM CST /7 PM EST/ this evening to 3 PM CST /4 PM EST/ Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 55 mph Winnebago County NWS severe weather mention
- Wind 55 mph Winnebago County NWS severe weather mention
- Wind 55 mph Winnebago County NWS severe weather mention
Saturday, December 27, 2025
2 NWS warnings — wind gusts up to 55 mph
“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. A few gusts to 55 mph possible. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...From 6 PM CST /7 PM EST/ Sunday to 6 PM CST /7 PM EST/ Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. A few gusts to 55 mph possible. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...From 6 PM CST /7 PM EST/ Sunday to 6 PM CST /7 PM EST/ Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 55 mph Winnebago County NWS severe weather mention
- Wind 55 mph Winnebago County NWS severe weather mention
Wednesday, November 26, 2025
2 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...Until 9 PM CST /10 PM EST/ this evening. IMPACTS...Gusty winds will blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result.”
“WHAT...West winds 20 to 30 mph with gusts up to 50 to 55 mph occurring. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...Until 9 PM CST /10 PM EST/ this evening. IMPACTS...Gusty winds will blow around unsecured objects including holiday decorations. Tree limbs could be blown down and a few power outages may result.”
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 55 mph Winnebago County NWS severe weather mention
Tuesday, November 25, 2025
7 NWS warnings — wind gusts up to 60 mph
“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...From 3 AM CST /4 AM EST/ to 9 PM CST /10 PM EST/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result.”
“WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN...From 3 AM CST /4 AM EST/ to 9 PM CST /10 PM EST/ Wednesday. IMPACTS...Gusty winds will blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result.”
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
- Wind 60 mph Winnebago County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Winnebago County, IL?
The most recent recorded event was in August 2026. Official NWS and SPC records show 49 severe weather events in Winnebago 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 Winnebago County recently?
Yes — 5 hail reports in the last 12 months, with hail up to 2.25" 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.