Hail HistoryHail history for Cook County, IL
Last hail in the countyJul 27, 20261 in (quarter)
Hail days, last 12 months5
Largest hail since 20062.75 in (baseball)Apr 7, 2020
Hail days since 2006126
Days with hail 1 inch or larger92
Tornadoes in the county55
Damaging wind reports in the county1,334
440 hail reports in Cook County since 2006 on 126 days. The largest stones measured 2.75 in (baseball) on Apr 7, 2020.
Cities in Cook County
- Chicago
43 hail days - Cicero
58 hail days - Arlington Heights
61 hail days - Evanston
45 hail days - Schaumburg
60 hail days - Palatine
59 hail days - Skokie
49 hail days - Des Plaines
54 hail days - Orland Park
53 hail days - Tinley Park
47 hail days - Oak Lawn
47 hail days - Berwyn
63 hail days - Mount Prospect
63 hail days - Oak Park
55 hail days - Hoffman Estates
59 hail days - Glenview
43 hail days - Bartlett
66 hail days - Buffalo Grove
59 hail days - Streamwood
64 hail days - Hanover Park
70 hail days - Wheeling
54 hail days - Park Ridge
58 hail days - Calumet City
37 hail days - Northbrook
42 hail days - Elk Grove
66 hail days - Chicago Heights
48 hail days - Niles
59 hail days - Burbank
49 hail days - Lansing
46 hail days - Oak Forest
50 hail days - Wilmette
46 hail days - Melrose Park
60 hail days - Harvey
53 hail days - Elmwood Park
64 hail days - Rolling Meadows
58 hail days - Maywood
58 hail days - Blue Island
45 hail days - Morton Grove
53 hail days - Dolton
44 hail days - South Holland
44 hail days - Park Forest
40 hail days - Evergreen Park
45 hail days - Homewood
44 hail days - Alsip
43 hail days - Bellwood
64 hail days - Matteson
47 hail days - Brookfield
66 hail days - Franklin Park
64 hail days - Palos Hills
51 hail days - Country Club Hills
49 hail days - Lemont
60 hail days - Westchester
65 hail days - Bridgeview
54 hail days - Prospect Heights
61 hail days - La Grange
67 hail days - Midlothian
47 hail days - Norridge
64 hail days - Chicago Ridge
49 hail days - Forest Park
58 hail days - Hickory Hills
55 hail days - Hazel Crest
47 hail days - Richton Park
45 hail days - La Grange Park
64 hail days - Riverdale
45 hail days - Western Springs
69 hail days - Justice
62 hail days - Markham
44 hail days - Lincolnwood
51 hail days - Palos Heights
45 hail days - Winnetka
35 hail days - Northlake
69 hail days - Schiller Park
63 hail days - Summit
58 hail days - River Forest
64 hail days - Crestwood
45 hail days - Worth
48 hail days - Lyons
60 hail days - Sauk
45 hail days - Barrington
70 hail days - River Grove
67 hail days - Steger
43 hail days - Flossmoor
43 hail days - Lynwood
43 hail days - Glenwood
50 hail days - Glencoe
35 hail days - Riverside
63 hail days - Harwood Heights
60 hail days - Hillside
65 hail days - Broadview
59 hail days - Calumet Park
46 hail days - Inverness
60 hail days - Orland Hills
52 hail days - Stickney
61 hail days - North Riverside
62 hail days - Countryside
69 hail days - Posen
47 hail days - Willow Springs
64 hail days - Northfield
38 hail days - Robbins
47 hail days - Berkeley
67 hail days - Olympia Fields
42 hail days - Stone Park
68 hail days - Palos Park
56 hail days - South Barrington
66 hail days - Hometown
46 hail days - Barrington Hills
69 hail days - Burnham
35 hail days - Rosemont
55 hail days - South Chicago Heights
44 hail days - Indian Head Park
73 hail days - Dixmoor
46 hail days - Ford Heights
46 hail days - Kenilworth
41 hail days
Recent hail in Cook County
| Date | Hail size | Where |
|---|---|---|
| Jul 27, 2026 | 1.75 in golf ball | Willowbrook, Tinley Park, Lemont 19 hail reports |
| Apr 14, 2026 | 1 in quarter | Prospect Heights, Schaumburg Regional Airport 2 hail reports |
| Mar 30, 2026 | 2 in hen egg | Berwyn, Mc Cook, La Grange Park 8 hail reports |
| Mar 26, 2026 | 1 in quarter | Orland Park, Crestwood 3 hail reports |
| Mar 10, 2026 | 2 in hen egg | La Grange, Forest Park, Northerly Island 5 hail reports |
| Sep 21, 2025 | 1.25 in half dollar | Matteson 1 hail report |
| Aug 16, 2025 | 1.25 in half dollar | Palatine, Des Plaines, Plum Grove Estates 6 hail reports |
| May 15, 2025 | 1.25 in half dollar | Franklin Park, Alpine, Ravenswood 3 hail reports |
| Mar 19, 2025 | 1 in quarter | Lemont, Oak Lawn, Hometown 3 hail reports |
One row per day: the largest hail reported in the county that day, the places and the number of reports.
Hail days in Cook County by year
When hail season peaks in Cook County
Damaging thunderstorm winds in Cook County
1,334 reports of damaging thunderstorm wind in Cook County since 2006, on 214 days. The strongest measured gust was 85 mph on Jun 11, 2026.
| Date | Strongest gust | Where |
|---|---|---|
| Aug 12, 2026 | damage reported | Flossmoor 1 wind report |
| Aug 11, 2026 | 81 mph, measured | South Barrington, Oak Lawn, Oak Forest 35 wind reports |
| Aug 9, 2026 | damage reported | Arlington Heights, Mount Prospect, Elk Grove Village 10 wind reports |
| Jul 28, 2026 | damage reported | Ford Heights 1 wind report |
| Jul 27, 2026 | 74 mph, measured | Midway Airport, Oak Forest, Palos Park 71 wind reports |
| Jul 10, 2026 | damage reported | Steger 1 wind report |
| Jul 4, 2026 | damage reported | Glenwood 1 wind report |
| Jul 3, 2026 | 72 mph, measured | Midway Airport, Chicago Loop, Burbank 31 wind reports |
| Jul 2, 2026 | 56 mph, measured | Hanover Park, Ohare Airport, Rogers Park - Chic 3 wind reports |
| Jun 24, 2026 | 81 mph, estimated | Streamwood, Bartlett, Evergreen Park 9 wind reports |
Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.
Filing a roof or car hail claim?
Insurers ask for the date of loss. The dates on this page are when hail was reported near Cook County; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.
Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then).