Hail in Chicago on Saturday, August 16, 2025
The Storm Prediction Center logged 11 hail reports in Chicago on Saturday, August 16, 2025, between 3:51 pm and 5:14 pm CDT, in 3 of the metro's 7 counties. The largest was 1.50 inches at 3 SW Naperville (DuPage County) at 5:14 pm. NOAA radar flagged 2,051 hail signatures inside the metro that day: 473 rated a 100% chance of hail and 482 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 10 places in Cook, DuPage and McHenry counties, named as the National Weather Service described them.
- Des Plaines 2 reports, up to 1.25 in
- Arlington Heights 1 report, up to 1.00 in
- Cary 1 report, up to 1.25 in
- Mount Prospect 1 report, up to 1.00 in
- Naperville 1 report, up to 1.50 in
- Palatine 1 report, up to 1.25 in
- Port Barrington 1 report, up to 1.50 in
- Rolling Meadows 1 report, up to 1.00 in
- Woodridge 1 report, up to 1.00 in
- Woodstock 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 |
|---|---|---|---|---|
| 3:51 pm | 1.00 | Woodstock | McHenry | Relayed via mping. (LOT) |
| 4:04 pm | 1.50 | 1 SW Port Barrington | McHenry | Relayed via mping. (LOT) |
| 4:05 pm | 1.25 | Cary | McHenry | Relayed via mping. (LOT) |
| 4:25 pm | 1.25 | 1 E Palatine | Cook | (LOT) |
| 4:28 pm | 1.00 | Rolling Meadows | Cook | Harper College. Multiple large branches also broken. (LOT) |
| 4:33 pm | 1.00 | Arlington Heights | Cook | 1333 Chicago Ave. (LOT) |
| 4:38 pm | 1.00 | 1 S Des Plaines | Cook | (LOT) |
| 4:39 pm | 1.00 | 1 SE Mount Prospect | Cook | Report from mPING: Quarter (1.00 in.). (LOT) |
| 4:44 pm | 1.25 | Des Plaines | Cook | Report from mPING: Half Dollar (1.25 in.). (LOT) |
| 5:12 pm | 1.00 | 1 NE Woodridge | DuPage | Photo shared on social media shows 1 hail. (LOT) |
| 5:14 pm | 1.50 | 3 SW Naperville | DuPage | Relayed via mping. (LOT) |
What NEXRAD radar recorded inside the metro
2,051 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; 473 were rated 100% and 98 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 | 433 | 65 | 72 | 8 | 2.50 in | 12:09 am | 11:57 pm |
| KMDW | 429 | 50 | 72 | 12 | 2.75 in | 12:08 am | 11:59 pm |
| KMKX | 220 | 64 | 61 | 19 | 3.50 in | 12:09 am | 11:59 pm |
| KDVN | 217 | 91 | 84 | 18 | 3.00 in | 12:08 am | 11:58 pm |
| KMKE | 214 | 54 | 58 | 17 | 2.75 in | 3:06 pm | 11:59 pm |
| KLOT | 187 | 54 | 54 | 13 | 2.75 in | 12:15 am | 11:55 pm |
| KIWX | 132 | 42 | 35 | 5 | 2.50 in | 12:29 am | 11:54 pm |
| KILX | 123 | 32 | 28 | 1 | 2.25 in | 12:11 am | 11:57 pm |
| KGRR | 75 | 15 | 10 | 5 | 2.75 in | 4:07 pm | 11:58 pm |
| KGRB | 11 | 4 | 6 | 0 | 1.75 in | 3:11 pm | 10:59 pm |
| KIND | 10 | 2 | 2 | 0 | 1.50 in | 4:12 pm | 8:18 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 August 16, 2025
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.