Hail in Chicago on Monday, July 27, 2026
The Storm Prediction Center logged 58 hail reports in Chicago on Monday, July 27, 2026, between 10:56 am and 3:46 pm CDT, in 6 of the metro's 7 counties. The largest was 3.00 inches at 2 WSW Shorewood (Will County) at 3:41 pm. NOAA radar flagged 2,872 hail signatures inside the metro that day: 931 rated a 100% chance of hail and 969 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 42 places in Cook, DuPage, Kane, Kendall, Lake and Will counties, named as the National Weather Service described them.
- Shorewood 4 reports, up to 3.00 in
- Downers Grove 3 reports, up to 2.00 in
- Westmont 3 reports, up to 2.50 in
- Clarendon Hills 2 reports, up to 2.00 in
- Glendale Heights 2 reports, up to 1.50 in
- Hinsdale 2 reports, up to 2.00 in
- Oak Brook 2 reports, up to 2.00 in
- Oak Forest 2 reports, up to 1.00 in
- Schaumburg 2 reports, up to 1.25 in
- West Dundee 2 reports, up to 1.00 in
- Willowbrook 2 reports, up to 1.75 in
- York Center 2 reports, up to 1.00 in
- Carol Stream 1 report, up to 1.00 in
- Countryside 1 report, up to 1.25 in
- Crystal Lawns 1 report, up to 1.25 in
- Darien 1 report, up to 1.00 in
- Elmhurst 1 report, up to 1.00 in
- Evergreen Park 1 report, up to 1.00 in
- Frankfort 1 report, up to 1.00 in
- Glen Ellyn 1 report, up to 1.00 in
- Greater Grand Cross 1 report, up to 1.50 in
- Hanover Park 1 report, up to 1.00 in
- Homer Glen 1 report, up to 1.25 in
- Indian Head Park 1 report, up to 1.25 in
- La Grange Park 1 report, up to 1.50 in
- Lemont 1 report, up to 1.75 in
- Lisle 1 report, up to 1.50 in
- Medinah 1 report, up to 1.00 in
- Merrionette Park 1 report, up to 1.00 in
- Midlothian 1 report, up to 1.00 in
- Minooka 1 report, up to 2.00 in
- Mokena 1 report, up to 1.75 in
- Northerly Island 1 report, up to 1.25 in
- Oak Lawn 1 report, up to 1.00 in
- Oakbrook Terrace 1 report, up to 1.50 in
- Park Forest 1 report, up to 1.00 in
- Plainfield 1 report, up to 1.75 in
- Roselle 1 report, up to 1.25 in
- Tinley Park 1 report, up to 1.75 in
- Villa Park 1 report, up to 1.00 in
- Wauconda 1 report, up to 1.00 in
- West Ridge - Chica 1 report, up to 1.00 in
Every hail report logged that day
Times are Central Daylight Time. Sizes are in inches, as reported. The comment is the National Weather Service's text as published in the Storm Prediction Center's daily log.
| Time | Size | Place | County | NWS comment |
|---|---|---|---|---|
| 10:56 am | 1.00 | 1 W West Dundee | Kane | Report from mPING: Quarter (1.00 in.). (LOT) |
| 10:58 am | 1.00 | 1 S West Dundee | Kane | Report from mPING: Quarter (1.00 in.). (LOT) |
| 11:17 am | 1.00 | 1 S Hanover Park | DuPage | Public report of quarter size hail relayed via mping. (LOT) |
| 11:43 am | 1.00 | 1 SE Schaumburg | Cook | Report from mPING: Quarter (1.00 in.). (LOT) |
| 11:45 am | 1.25 | 1 SE Schaumburg | Cook | Report from mPING: Half Dollar (1.25 in.). (LOT) |
| 11:47 am | 1.00 | 3 W York Center | DuPage | Relayed via mping. Time estimated by radar. (LOT) |
| 11:48 am | 1.00 | 1 W Medinah | DuPage | Relayed via mping. (LOT) |
| 11:48 am | 1.25 | 1 NW Roselle | DuPage | Report from mPING: Half Dollar (1.25 in.). (LOT) |
| 11:52 am | 1.00 | 1 SW York Center | DuPage | Relayed via mping. (LOT) |
| 11:54 am | 1.25 | 1 WSW Willowbrook | DuPage | Photo shared to social media shows half dollar size hail near 67th Street and Clarendon Hills Road. Time estimated by radar. (LOT) |
| 11:54 am | 1.75 | Oak Brook | DuPage | Public report of golf ball size hail in Oak Brook. Time estimated by radar. (LOT) |
| 11:54 am | 1.50 | 1 N Oakbrook Terrace | DuPage | Public report of ping pong ball size hail at Oakbrook Terrace. Time estimated by radar. (LOT) |
| 11:55 am | 1.00 | 1 ENE Carol Stream | DuPage | Corrects previous hail report from 1 ENE Carol Stream. Quarter size hail in Carol Stream. Location approximate. (LOT) |
| 11:56 am | 2.00 | Clarendon Hills | DuPage | Trained spotter reported 2 inch diameter hail in Clarendon Hills. Time estimated by radar. (LOT) |
| 11:56 am | 1.75 | Hinsdale | DuPage | Public report of golf ball size hail in Hinsdale. Relayed via social media. Time estimated by radar. (LOT) |
| 11:56 am | 1.00 | 1 NW Villa Park | DuPage | Public report of nickel to quarter size hail in Villa Park. Some melting occurred prior to measurement. Time estimated by radar. (LOT) |
| 11:59 am | 1.75 | 1 NW Westmont | DuPage | Public report of golf ball size hail in northeastern Downers Grove. Hail fell for 15 minute period. Time estimated by radar. (LOT) |
| 12:00 pm | 1.50 | 1 NE Downers Grove | DuPage | Relayed via mping. (LOT) |
| 12:01 pm | 1.50 | 1 E La Grange Park | Cook | Relayed via mping. (LOT) |
| 12:02 pm | 1.25 | 1 NW Countryside | Cook | Public report of hail up to half dollar size near 55th Street and Willow Springs Road. Most hail stones nickel size. (LOT) |
| 12:03 pm | 1.25 | 1 NNE Indian Head Park | Cook | Photo shared on social media of quarter to half dollar size hail in La Grange Highlands. (LOT) |
| 12:04 pm | 2.00 | 1 NW Clarendon Hills | DuPage | Report from mPING: Hen Egg (2.00 in.). (LOT) |
| 12:05 pm | 2.00 | Downers Grove | DuPage | Measured hailstone of 2 inches in diameter. Time estimated by radar. (LOT) |
| 12:08 pm | 2.00 | Oak Brook | DuPage | Photo shared on social media showing a hailstone roughly two inches in diameter. (LOT) |
| 12:09 pm | 1.00 | Elmhurst | DuPage | Relayed via mping. Time estimated by radar. (LOT) |
| 12:10 pm | 2.00 | Hinsdale | DuPage | Hail damaged vehicles. (LOT) |
| 12:10 pm | 1.00 | 1 N Glen Ellyn | DuPage | (LOT) |
| 12:10 pm | 1.25 | Glendale Heights | DuPage | (LOT) |
| 12:11 pm | 1.50 | 1 E Glendale Heights | DuPage | Relayed via mping. (LOT) |
| 12:14 pm | 1.50 | 2 NW Lisle | DuPage | Relayed via mping. Time estimated by radar. (LOT) |
| 12:15 pm | 1.75 | Downers Grove | DuPage | Photo shared on social media of golf ball size hail. (LOT) |
| 12:16 pm | 2.00 | 1 S Westmont | DuPage | (LOT) |
| 12:18 pm | 2.50 | 1 WNW Westmont | DuPage | (LOT) |
| 12:20 pm | 1.75 | 1 ENE Willowbrook | DuPage | Golf ball size hail near 63rd Street and County Line Road. Relayed via amateur radio. Time estimated by radar. (LOT) |
| 12:21 pm | 1.00 | 2 SE Wauconda | Lake | Relayed via mping. Time estimated by radar. (LOT) |
| 12:26 pm | 1.00 | Darien | DuPage | Relayed via mping. Time estimated by radar. (LOT) |
| 12:30 pm | 1.75 | 1 NE Tinley Park | Cook | (LOT) |
| 12:32 pm | 1.75 | 2 SE Lemont | Cook | Relayed via mping. Time estimated by radar. (LOT) |
| 12:35 pm | 1.25 | 3 NW Homer Glen | Will | Relayed via mping. Time estimated by radar. (LOT) |
| 12:46 pm | 1.00 | 1 SSW Merrionette Park | Cook | Photo of hail in Alsip. Time estimated by radar. (LOT) |
| 12:47 pm | 1.00 | 1 W Oak Forest | Cook | Relayed via mping. (LOT) |
| 12:49 pm | 1.75 | 2 NE Mokena | Will | Relayed via mping. Time estimated by radar. (LOT) |
| 12:50 pm | 1.00 | Oak Forest | Cook | Also estimated 60 mph winds. (LOT) |
| 12:50 pm | 1.00 | 1 NW Oak Lawn | Cook | Relayed via mping. Time estimated by radar. (LOT) |
| 12:51 pm | 1.00 | 1 SW Evergreen Park | Cook | Relayed via mping. Time estimated by radar. (LOT) |
| 1:00 pm | 1.25 | 1 W Northerly Island | Cook | Relayed via mping. (LOT) |
| 1:01 pm | 1.00 | 1 W Midlothian | Cook | Relayed via mping. Time estimated by radar. (LOT) |
| 1:03 pm | 1.00 | Park Forest | Cook | Pea to Quarter sized hail. (LOT) |
| 1:04 pm | 1.00 | 2 W Frankfort | Will | Public report of quarter size hail on the west side of Frankfort. Time estimated by radar. (LOT) |
| 1:17 pm | 1.50 | 1 E Greater Grand Cross | Cook | Relayed via mping. Time estimated by radar. (LOT) |
| 1:37 pm | 1.00 | 1 NW West Ridge - Chica | Cook | A brief period of 1-inch diameter hail near Kedzie and Touhy. Time estimated from radar. (LOT) |
| 3:32 pm | 1.75 | 4 SW Plainfield | Kendall | Reports of golf ball size hail near Caton Farm Road and County Line Road. Relayed via amateur radio. Time estimated by radar. (LOT) |
| 3:35 pm | 1.25 | 2 SW Crystal Lawns | Will | Relayed via mping. Time estimated by radar. (LOT) |
| 3:35 pm | 2.25 | 2 N Shorewood | Will | Relayed via mping. Time estimated by radar. (LOT) |
| 3:38 pm | 1.25 | 4 W Shorewood | Kendall | Relayed via mping. (LOT) |
| 3:41 pm | 3.00 | 2 WSW Shorewood | Will | Photo shows hail stone at least 3 inches in diameter that fell near Four Seasons Park in Shorewood. Hail stone was collected and frozen 2 minutes after it fell. Multipl (LOT) |
| 3:45 pm | 1.50 | 1 S Shorewood | Will | (LOT) |
| 3:46 pm | 2.00 | 1 SE Minooka | Will | Public report of hen egg size hail near Minooka. Time estimated by radar. Relayed via mping. (LOT) |
What NEXRAD radar recorded inside the metro
2,872 signatures from 11 radars fell inside the metro's counties on this local date, counting every cell the algorithm rated from a 10% to a 100% chance of hail; 931 were rated 100% and 277 had a maximum expected size of 2 inches or more.
| Radar | Signatures | Rated 100% | 1 in or more | 2 in or more | Largest expected | First | Last |
|---|---|---|---|---|---|---|---|
| KORD | 636 | 81 | 117 | 10 | 2.50 in | 10:01 am | 11:08 pm |
| KMDW | 611 | 140 | 167 | 17 | 2.50 in | 10:21 am | 11:08 pm |
| KDVN | 329 | 145 | 135 | 54 | 4.00 in | 9:55 am | 11:09 pm |
| KMKX | 284 | 122 | 121 | 44 | 4.00 in | 9:50 am | 11:07 pm |
| KILX | 254 | 113 | 108 | 50 | 4.00 in | 10:36 am | 11:04 pm |
| KLOT | 231 | 85 | 102 | 25 | 3.25 in | 9:50 am | 11:01 pm |
| KIWX | 220 | 141 | 129 | 57 | 4.00 in | 10:52 am | 11:06 pm |
| KMKE | 202 | 40 | 34 | 3 | 2.25 in | 9:47 am | 8:49 pm |
| KGRR | 80 | 52 | 44 | 17 | 2.75 in | 9:51 am | 8:28 pm |
| KIND | 16 | 11 | 10 | 0 | 1.75 in | 1:10 pm | 6:18 pm |
| KGRB | 9 | 1 | 2 | 0 | 1.50 in | 11:52 am | 8:30 pm |
Each radar that scans a storm writes its own signature about every 4 to 6 minutes, so one storm produces many rows and overlapping radars count it more than once. The raw rows for this day are in NOAA's Severe Weather Data Inventory.
Check an address for July 27, 2026
See, free, how many hail signatures NOAA recorded within 1, 3 and 5 miles of one address that day and the nearest spotter report. The full report is $19.
Spotter reports come from the Storm Prediction Center's preliminary daily logs, grouped here by local calendar date (Central Daylight Time) and by county: a report counts for Chicago when its coordinates fall inside one of the metro's 7 counties (Cook, DuPage, Kane, Lake, McHenry, Will and Kendall counties). Radar signatures are estimates from the Hail Detection Algorithm, not measured stones; they include every cell it rated, from a 10% to a 100% probability of hail. How these pages are built.