Pilot Index / Illinois / Aug 17, 2025

Preliminary

Storms in Illinois on Aug 17, 2025

21 published severe reports across Illinois on Aug 17, 2025.

Updated Oct 28, 2026.

Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail reports: 0. Wind reports: 21. Tornado reports: 0.

The table and map show 21 of 21 reports.

TimeWhatSize or SpeedWhereDetails
Aug 17, 2025, 1:55 AM CDTWind63 mphALGONQUIN
Record
  • Aug 17, 2025, 1:55 AM CDT. Wind, 63 mph, ALGONQUIN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287391.
Aug 17, 2025, 1:55 AM CDTWind63 mphAlgonquin
Record
  • Aug 17, 2025, 1:55 AM CDT. Wind, 63 mph, Algonquin. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:f998a7253bca44009a32bb79994c6e66daa78d3b9b84f9a9e7a0ccb6689dd307.
Aug 17, 2025, 2:24 AM CDTWind63 mph(ORD) CHICAGO O'HARE AIRPORT
Record
  • Aug 17, 2025, 2:24 AM CDT. Wind, 63 mph, (ORD) CHICAGO O'HARE AIRPORT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287392.
Aug 17, 2025, 2:24 AM CDTWind63 mphOhare Airport
Record
  • Aug 17, 2025, 2:24 AM CDT. Wind, 63 mph, Ohare Airport. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:05c13b063670e51cd83faeffe559b40f171e714192c5b4482efff3f3aecdaec7.
Aug 17, 2025, 2:30 AM CDTWind60 mphWOOD DALE
Record
  • Aug 17, 2025, 2:30 AM CDT. Wind, 60 mph, WOOD DALE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287394.
Aug 17, 2025, 2:33 AM CDTWind60 mphGLEN ELLYN
Record
  • Aug 17, 2025, 2:33 AM CDT. Wind, 60 mph, GLEN ELLYN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287395.
Aug 17, 2025, 2:35 AM CDTWind61 mphLA GRANGE PARK
Record
  • Aug 17, 2025, 2:35 AM CDT. Wind, 61 mph, LA GRANGE PARK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287393.
Aug 17, 2025, 2:35 AM CDTWind61 mph1 N La Grange Park
Record
  • Aug 17, 2025, 2:35 AM CDT. Wind, 61 mph, 1 N La Grange Park. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:2026ca41939d34a4cd4c1852c7e05906dadd9087646377d912ca51292168e423.
Aug 17, 2025, 2:38 AM CDTWind60 mphBUTTERFIELD
Record
  • Aug 17, 2025, 2:38 AM CDT. Wind, 60 mph, BUTTERFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287396.
Aug 17, 2025, 2:39 AM CDTWind60 mphDOWNERS GROVE
Record
  • Aug 17, 2025, 2:39 AM CDT. Wind, 60 mph, DOWNERS GROVE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287397.
Aug 17, 2025, 2:46 AM CDTWind60 mphDOWNERS GROVE
Record
  • Aug 17, 2025, 2:46 AM CDT. Wind, 60 mph, DOWNERS GROVE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287398.
Aug 17, 2025, 2:55 AM CDTWind60 mphDARIEN
Record
  • Aug 17, 2025, 2:55 AM CDT. Wind, 60 mph, DARIEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287399.
Aug 17, 2025, 2:57 AM CDTWind60 mphBURBANK
Record
  • Aug 17, 2025, 2:57 AM CDT. Wind, 60 mph, BURBANK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287407.
Aug 17, 2025, 2:58 AM CDTWind60 mphHICKORY HILLS
Record
  • Aug 17, 2025, 2:58 AM CDT. Wind, 60 mph, HICKORY HILLS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287401.
Aug 17, 2025, 2:58 AM CDTWind60 mphOAK LAWN
Record
  • Aug 17, 2025, 2:58 AM CDT. Wind, 60 mph, OAK LAWN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287406.
Aug 17, 2025, 2:58 AM CDTWind60 mph3 SW Burbank
Record
  • Aug 17, 2025, 2:58 AM CDT. Wind, 60 mph, 3 SW Burbank. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:887440362cf4fd31f75f77ca7de51380b8d0a9a3a94721d5875b47935d7bfbf7.
Aug 17, 2025, 2:59 AM CDTWind60 mphOAK FOREST
Record
  • Aug 17, 2025, 2:59 AM CDT. Wind, 60 mph, OAK FOREST. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287402.
Aug 17, 2025, 3:00 AM CDTWind64 mphMARKHAM
Record
  • Aug 17, 2025, 3:00 AM CDT. Wind, 64 mph, MARKHAM. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287405.
Aug 17, 2025, 3:02 AM CDTWind60 mphHARVEY
Record
  • Aug 17, 2025, 3:02 AM CDT. Wind, 60 mph, HARVEY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287403.
Aug 17, 2025, 3:11 AM CDTWind60 mphCRETE
Record
  • Aug 17, 2025, 3:11 AM CDT. Wind, 60 mph, CRETE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1287404.
Aug 17, 2025, 4:05 AM CDTWind60 mphBOULDER HILL
Record
  • Aug 17, 2025, 4:05 AM CDT. Wind, 60 mph, BOULDER HILL. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:1297345.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.