Cook County Storm Activity
Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 180 days · Updated Sep 11, 2026
Cook County, Illinois has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 9 tornado reports among 133 severe weather events here in the last 180 days, alongside 14 hail reports with hail up to 2" and 110 high-wind reports with gusts up to 85 mph. The most recent recorded storm activity was on Aug 12, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
What the radar showed
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Check an address 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.
Wednesday, August 12, 2026
1 SPC verified storm report
“Report on social media of additional tree limbs fell during the storms this morning. Time estimated by radar. (LOT)”
- Wind Unknown Flossmoor SPC verified report
Tuesday, August 11, 2026
10 SPC verified storm reports — wind gusts up to 70 mph, 2 tornado reports
“An EF-1 tornado began west of Halsted between 183rd and 187th... crossing Halsted and causing structural damage to a strip mall and several buildings in an apartment co (LOT)”
“NWS survey confirms an EF-1 tornado with peak winds near 105 mph... peak width of 300 yards... and path length of 22.4 miles. (LOT)”
- Tornado Tornado 1 ESE Homewood SPC verified report
- Tornado Tornado 3 SE Homer Glen SPC verified report
- Wind 70 mph 1 W Oak Lawn SPC verified report
- Wind Unknown 1 NE Portage Park - Chi SPC verified report
- Wind Unknown 1 NE Washington Hts - C SPC verified report
- Wind Unknown 1 W Sauk Village SPC verified report
- Wind Unknown 1 SSE Tinley Park SPC verified report
- Wind Unknown North Riverside SPC verified report
- Wind Unknown 1 S Lemont SPC verified report
- Wind Unknown Woodlawn - Chicago SPC verified report
Sunday, August 9, 2026
6 SPC verified storm reports
“Corrects time of previous tstm wnd dmg report from 1 S Posen. Trees downed on 149th Street in Posen. Time estimated from radar. (LOT)”
“Multiple large trees down blocking multiple roadways along State Street between Freehauf and Keepataw Drive. Time estimated. (LOT)”
- Wind Unknown 1 S Posen SPC verified report
- Wind Unknown 1 S Lemont SPC verified report
- Wind Unknown 1 ENE Humboldt Park - C SPC verified report
- Wind Unknown 1 SE Elk Grove Village SPC verified report
- Wind Unknown 1 WSW Arlington Heights SPC verified report
- Wind Unknown 1 SSW Edgewater - Chica SPC verified report
Monday, July 27, 2026
30 SPC verified storm reports — hail up to 1.75", wind gusts up to 74 mph, 5 tornado reports
“Likely portion of tornado path in/near Markham. Concentrated area of tree damage along westbound I-80/I-294 at the Dixie Highway exit directly east and west of the exit (LOT)”
“Corrects time of previous tornado report from 2 E Glenwood. An NWS storm survey confirmed an EF-1 tornado with peak winds of 110 mph... peak width of 225 yards... and p (LOT)”
- Tornado Tornado 1 ENE Hazel Crest SPC verified report
- Tornado Tornado 2 E Glenwood SPC verified report
- Tornado Tornado 1 ENE Hazel Crest SPC verified report
- Tornado Tornado 3 NW Orland Park SPC verified report
- Tornado Tornado 1 N Orland Park SPC verified report
- Hail 1.75" 1 ENE Willowbrook SPC verified report
- Hail 1.75" 1 NE Tinley Park SPC verified report
- Wind 74 mph 3.0 SW Midway Airport SPC verified report
- Hail 1.5" 1 E Greater Grand Cross SPC verified report
- Hail 1.5" 1 E La Grange Park SPC verified report
- Wind 74 mph Midway Airport SPC verified report
- Wind 63 mph Lakeview - Chicago SPC verified report
- + 18 more events this day — full detail in the app
Friday, July 10, 2026
1 SPC verified storm report
“Report of downed tree limbs... a hanging street light... and hail near the intersection of Steger Road and State Street. The location and time of the report coincides t (LOT)”
- Wind Unknown 1 E Steger SPC verified report
Saturday, July 4, 2026
1 SPC verified storm report
“Video shared to social media shows branch downed onto shoulder and part of one lane of IL-394 southbound. Time estimated by radar. (LOT)”
- Wind Unknown 2 ENE Glenwood SPC verified report
Friday, July 3, 2026
14 SPC verified storm reports — wind gusts up to 72 mph
“Peak wind gust of 64 mph measured on a personal weather station. (LOT)”
“Peak wind gust of 55 kt measured at runway sensor 27 left. Peak gust of 47 kt at ASOS. (LOT)”
- Wind 72 mph Midway Airport SPC verified report
- Wind 64 mph 1 ESE Lakeview - Chicag SPC verified report
- Wind 63 mph Ohare Airport SPC verified report
- Wind 59 mph Lynwood SPC verified report
- Wind Unknown 1 E Flossmoor SPC verified report
- Wind Unknown Lakeview - Chicago SPC verified report
- Wind Unknown 1 NW Evanston SPC verified report
- Wind Unknown 1 SSW South Chicago SPC verified report
- Wind Unknown 3.0 SW Midway Airport SPC verified report
- Wind Unknown 1 S Des Plaines SPC verified report
- Wind Unknown Mount Prospect SPC verified report
- Wind Unknown 1 SE Arlington Heights SPC verified report
- + 2 more events this day — full detail in the app
Thursday, July 2, 2026
3 SPC verified storm reports — wind gusts up to 60 mph
“Western Avenue blocked by downed tree or tree branch between Joe Orr Road and Vollmer Road. Time estimated by radar. (LOT)”
“Several large branches were downed in Schaumburg near the intersection of Jones Rd and Higgins Rd. Time estimated by radar. (LOT)”
- Wind 60 mph Westchester SPC verified report
- Wind Unknown 1 ENE Olympia Fields SPC verified report
- Wind Unknown Hoffman Estates SPC verified report
Wednesday, July 1, 2026
1 SPC verified storm report
“Shortly after departing the Howard station in Rogers Park... a CTA Yellow Line train was partially derailed after a large portion of tree fell onto the tracks. 31 peopl (LOT)”
- Wind Unknown 1 NW Rogers Park - Chic SPC verified report
Sunday, June 28, 2026
4 NWS warnings — wind gusts up to 55 mph
“WHAT...For the Wind Advisory, southeast winds gusts 45 to 55 mph. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 105 expected. WHERE...Central Cook and Northern Cook Counties. WHEN...For the Wind Advisory, until 8 PM CDT this evening. For the Extreme Heat Warning, from noon Monday to 10 PM CDT Wednesday.”
“WHAT...For the Wind Advisory, southeast winds gusts 45 to 55 mph. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 105 expected. WHERE...Central Cook and Northern Cook Counties. WHEN...For the Wind Advisory, until 8 PM CDT this evening. For the Extreme Heat Warning, from noon Monday to 10 PM CDT Wednesday.”
- Wind 55 mph Cook County NWS severe weather mention
- Wind 55 mph Cook County NWS severe weather mention
- Wind 55 mph Cook County NWS severe weather mention
- Wind 55 mph Cook County NWS severe weather mention
Wednesday, June 24, 2026
3 SPC verified storm reports
“Photo shared to social media shows uprooted tree in Streamwood. Time estimated by social media. (LOT)”
“Tree branches downed at Lords Park in Elgin. Time estimated by radar. (LOT)”
- Wind Unknown 1 WNW Streamwood SPC verified report
- Wind Unknown 1 ENE Elgin SPC verified report
- Wind Unknown Bartlett SPC verified report
Tuesday, June 23, 2026
2 SPC verified storm reports
“Photos shared to social media show multiple large branches downed... one tree snapped at the base... near 99th Street and California Avenue. Time estimated by radar. (LOT)”
“Multiple public reports of downed tree branches in the Edgewater and Uptown community areas of Chicago. Relayed via Chicago 311. Time estimated by radar. (LOT)”
- Wind Unknown 1 SE Evergreen Park SPC verified report
- Wind Unknown 1 NNW Uptown - Chicago SPC verified report
Saturday, June 13, 2026
2 SPC verified storm reports
“Several trees and large tree limbs downed in Calumet City... particularly near Burnham Avenue between 154th and 158th Streets. A few trees fell onto homes and power lin (LOT)”
“Multiple trees uprooted or damaged on the northeast side of South Holland. (LOT)”
- Wind Unknown 2 S Burnham SPC verified report
- Wind Unknown 1 NE South Holland SPC verified report
Thursday, June 11, 2026
3 NWS warnings — wind gusts up to 60 mph
“WHAT...A brief period of damaging winds up to 60 mph. WHERE...Central Cook, DuPage, Grundy, Kane, Kendall, Northern Cook, Northern Will, Southern Cook, and Southern Will Counties. WHEN...Until 4 PM CDT this afternoon. 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...A brief period of damaging winds up to 60 mph. WHERE...Central Cook, DuPage, Grundy, Kane, Kendall, Northern Cook, Northern Will, Southern Cook, and Southern Will Counties. WHEN...Until 4 PM CDT this afternoon. 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 Cook County NWS severe weather mention
- Wind 60 mph Cook County NWS severe weather mention
- Wind 60 mph Cook County NWS severe weather mention
Wednesday, June 10, 2026
22 SPC verified storm reports — wind gusts up to 85 mph, 2 tornado reports
“6 INJ NWS survey confirms a preliminary EF-2 tornado. Peak winds of 120 mph... width of 350 yards... and length of 8.4 miles. (LOT)”
“NWS survey confirmed a preliminary EF-0 tornado. Path length of 2.5 miles... max width of 175 yards... and peak winds of 80 mph. (LOT)”
- Tornado Tornado 1 S Willow Springs SPC verified report
- Tornado Tornado 1 E Palos Heights SPC verified report
- Wind 85 mph 1 W Oak Lawn SPC verified report
- Wind 78 mph 1 ESE Lakeview - Chicag SPC verified report
- Wind 73 mph Hyde Park - Chicago SPC verified report
- Wind 72 mph Midway Airport SPC verified report
- Wind 64 mph 1 ENE Bridgeview SPC verified report
- Wind 62 mph 1 E Glenview SPC verified report
- Wind Unknown Bridgeview SPC verified report
- Wind Unknown Burbank SPC verified report
- Wind Unknown 1 SSW Washington Hts - SPC verified report
- Wind Unknown 1 NE Evanston SPC verified report
- + 10 more events this day — full detail in the app
Monday, May 18, 2026
7 SPC verified storm reports — wind gusts up to 79 mph
“KMDW ASOS recorded 79 mph wind gust from the southwest. (LOT)”
“Tree or tree branch broken and blocking roadway near Cornelia Avenue and Fremont Street in Lakeview community area of Chicago. Time estimated by radar. (LOT)”
- Wind 79 mph Midway Airport SPC verified report
- Wind Unknown Lakeview - Chicago SPC verified report
- Wind Unknown South Chicago SPC verified report
- Wind Unknown 2 SSE South Chicago SPC verified report
- Wind Unknown 1 SSE Forest View SPC verified report
- Wind Unknown 1 ENE Summit SPC verified report
- Wind Unknown Homewood SPC verified report
Monday, April 27, 2026
6 NWS warnings — wind gusts up to 60 mph
“WHAT...Southeast winds 25 to 35 mph with gusts up to 60 mph. WHERE...De Kalb, Central Cook, DuPage, Kane, Lake IL, McHenry, and Northern Cook Counties. WHEN...Until 4 PM CDT this afternoon. 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...Southeast winds 25 to 35 mph with gusts up to 60 mph. WHERE...De Kalb, Central Cook, DuPage, Kane, Lake IL, McHenry, and Northern Cook Counties. WHEN...Until 4 PM CDT this afternoon. 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 Cook County NWS severe weather mention
- Wind 60 mph Cook County NWS severe weather mention
- Wind 60 mph Cook County NWS severe weather mention
- Wind 60 mph Cook County NWS severe weather mention
- Wind 60 mph Cook County NWS severe weather mention
- Wind 50 mph Cook County NWS severe weather mention
Thursday, April 16, 2026
3 SPC verified storm reports — wind gusts up to 65 mph
“A personal weather station recorded a 62 mph gust in the South Loops community area of Chicago. (LOT)”
“Photo shared on social media of tree roughly 2 feet in diameter snapped. Time estimated by radar. (LOT)”
- Wind 62 mph 1 W Northerly Island SPC verified report
- Wind 65 mph Indian Head Park SPC verified report
- Wind Unknown Rolling Meadows SPC verified report
Monday, April 13, 2026
4 SPC verified storm reports — hail up to 1", wind gusts up to 63 mph
“Measured at a personal weather station. A separate PWS nearby reported a similar gust. (LOT)”
“Measured at a personal weather station. A separate nearby station measured a similar wind gust. (LOT)”
- Wind 63 mph 1 SW Albany Park - Chic SPC verified report
- Wind 63 mph 1 NW Irving Park - Chic SPC verified report
- Hail 1" 2 SW Schaumburg SPC verified report
- Hail 1" 1 SW Prospect Heights SPC verified report
Sunday, April 12, 2026
1 NWS warning — wind gusts up to 50 mph
“Southwesterly winds may briefly and sporadically gust 40 to 50 mph through about 1 AM. If traveling on east-west oriented roads, be prepared for gusty crosswinds, particularly in higher profile vehicles.”
- Wind 50 mph Cook County NWS severe weather mention
Wednesday, April 1, 2026
4 SPC verified storm reports — wind gusts up to 70 mph
“Multiple large tree branches downed in and near Garfield Park. Small tree also uprooted. (LOT)”
- Wind 70 mph 3.0 SW Midway Airport SPC verified report
- Wind 64 mph 2 SSE Logan Square - Ch SPC verified report
- Wind 60 mph Indian Head Park SPC verified report
- Wind Unknown Garfield Park - Chicago SPC verified report
Sunday, March 29, 2026
1 SPC verified storm report — hail up to 2"
- Hail 2" Berwyn SPC verified report
Thursday, March 26, 2026
1 SPC verified storm report — hail up to 1"
“Report from mPING: Quarter (1.00 in.). (LOT)”
- Hail 1" 3 W Palos Park SPC verified report
Wednesday, March 25, 2026
1 SPC verified storm report — hail up to 1"
- Hail 1" 1 E Orland Park SPC verified report
Sunday, March 15, 2026
2 SPC verified storm reports
“Trees downed in Riverdale. Time estimated from radar. (LOT)”
“Trees downed. Roofing damage also reported. (LOT)”
- Wind Unknown Riverdale SPC verified report
- Wind Unknown 2 W Tinley Park SPC verified report
Today's severe weather outlook
Common questions
When was the last severe storm in Cook County, IL?
The most recent recorded event was on Aug 12, 2026. Official NWS and SPC records show 133 severe weather events in Cook County over the last 180 days. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in Cook County recently?
Yes — 14 hail reports in the last 180 days, with hail up to 2" 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.