Hail on Date

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.

58spotter hail reports in the metro
3.00 inlargest reported, 2 WSW Shorewood
2,872radar hail signatures inside the metro, 931 rated 100%
4.00 inlargest expected size on radar
Map of Chicago counties with 2872 radar hail signatures and 58 spotter hail reports on July 27, 2026 Cook DuPage Kane Lake McHenry Will Kendall 3.00 in, 2 WSW Shorewood
Amber dots are radar hail signatures inside the metro's counties (every cell the algorithm rated, 10% to 100% chance of hail), darkest under 1 inch, brighter from 1 inch, brightest at 2 inches and up. Triangles are spotter reports; the filled one is the largest. County names are drawn at each county's center.

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.

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.

TimeSizePlaceCountyNWS comment
10:56 am1.001 W West DundeeKaneReport from mPING: Quarter (1.00 in.). (LOT)
10:58 am1.001 S West DundeeKaneReport from mPING: Quarter (1.00 in.). (LOT)
11:17 am1.001 S Hanover ParkDuPagePublic report of quarter size hail relayed via mping. (LOT)
11:43 am1.001 SE SchaumburgCookReport from mPING: Quarter (1.00 in.). (LOT)
11:45 am1.251 SE SchaumburgCookReport from mPING: Half Dollar (1.25 in.). (LOT)
11:47 am1.003 W York CenterDuPageRelayed via mping. Time estimated by radar. (LOT)
11:48 am1.001 W MedinahDuPageRelayed via mping. (LOT)
11:48 am1.251 NW RoselleDuPageReport from mPING: Half Dollar (1.25 in.). (LOT)
11:52 am1.001 SW York CenterDuPageRelayed via mping. (LOT)
11:54 am1.251 WSW WillowbrookDuPagePhoto shared to social media shows half dollar size hail near 67th Street and Clarendon Hills Road. Time estimated by radar. (LOT)
11:54 am1.75Oak BrookDuPagePublic report of golf ball size hail in Oak Brook. Time estimated by radar. (LOT)
11:54 am1.501 N Oakbrook TerraceDuPagePublic report of ping pong ball size hail at Oakbrook Terrace. Time estimated by radar. (LOT)
11:55 am1.001 ENE Carol StreamDuPageCorrects previous hail report from 1 ENE Carol Stream. Quarter size hail in Carol Stream. Location approximate. (LOT)
11:56 am2.00Clarendon HillsDuPageTrained spotter reported 2 inch diameter hail in Clarendon Hills. Time estimated by radar. (LOT)
11:56 am1.75HinsdaleDuPagePublic report of golf ball size hail in Hinsdale. Relayed via social media. Time estimated by radar. (LOT)
11:56 am1.001 NW Villa ParkDuPagePublic report of nickel to quarter size hail in Villa Park. Some melting occurred prior to measurement. Time estimated by radar. (LOT)
11:59 am1.751 NW WestmontDuPagePublic report of golf ball size hail in northeastern Downers Grove. Hail fell for 15 minute period. Time estimated by radar. (LOT)
12:00 pm1.501 NE Downers GroveDuPageRelayed via mping. (LOT)
12:01 pm1.501 E La Grange ParkCookRelayed via mping. (LOT)
12:02 pm1.251 NW CountrysideCookPublic report of hail up to half dollar size near 55th Street and Willow Springs Road. Most hail stones nickel size. (LOT)
12:03 pm1.251 NNE Indian Head ParkCookPhoto shared on social media of quarter to half dollar size hail in La Grange Highlands. (LOT)
12:04 pm2.001 NW Clarendon HillsDuPageReport from mPING: Hen Egg (2.00 in.). (LOT)
12:05 pm2.00Downers GroveDuPageMeasured hailstone of 2 inches in diameter. Time estimated by radar. (LOT)
12:08 pm2.00Oak BrookDuPagePhoto shared on social media showing a hailstone roughly two inches in diameter. (LOT)
12:09 pm1.00ElmhurstDuPageRelayed via mping. Time estimated by radar. (LOT)
12:10 pm2.00HinsdaleDuPageHail damaged vehicles. (LOT)
12:10 pm1.001 N Glen EllynDuPage(LOT)
12:10 pm1.25Glendale HeightsDuPage(LOT)
12:11 pm1.501 E Glendale HeightsDuPageRelayed via mping. (LOT)
12:14 pm1.502 NW LisleDuPageRelayed via mping. Time estimated by radar. (LOT)
12:15 pm1.75Downers GroveDuPagePhoto shared on social media of golf ball size hail. (LOT)
12:16 pm2.001 S WestmontDuPage(LOT)
12:18 pm2.501 WNW WestmontDuPage(LOT)
12:20 pm1.751 ENE WillowbrookDuPageGolf ball size hail near 63rd Street and County Line Road. Relayed via amateur radio. Time estimated by radar. (LOT)
12:21 pm1.002 SE WaucondaLakeRelayed via mping. Time estimated by radar. (LOT)
12:26 pm1.00DarienDuPageRelayed via mping. Time estimated by radar. (LOT)
12:30 pm1.751 NE Tinley ParkCook(LOT)
12:32 pm1.752 SE LemontCookRelayed via mping. Time estimated by radar. (LOT)
12:35 pm1.253 NW Homer GlenWillRelayed via mping. Time estimated by radar. (LOT)
12:46 pm1.001 SSW Merrionette ParkCookPhoto of hail in Alsip. Time estimated by radar. (LOT)
12:47 pm1.001 W Oak ForestCookRelayed via mping. (LOT)
12:49 pm1.752 NE MokenaWillRelayed via mping. Time estimated by radar. (LOT)
12:50 pm1.00Oak ForestCookAlso estimated 60 mph winds. (LOT)
12:50 pm1.001 NW Oak LawnCookRelayed via mping. Time estimated by radar. (LOT)
12:51 pm1.001 SW Evergreen ParkCookRelayed via mping. Time estimated by radar. (LOT)
1:00 pm1.251 W Northerly IslandCookRelayed via mping. (LOT)
1:01 pm1.001 W MidlothianCookRelayed via mping. Time estimated by radar. (LOT)
1:03 pm1.00Park ForestCookPea to Quarter sized hail. (LOT)
1:04 pm1.002 W FrankfortWillPublic report of quarter size hail on the west side of Frankfort. Time estimated by radar. (LOT)
1:17 pm1.501 E Greater Grand CrossCookRelayed via mping. Time estimated by radar. (LOT)
1:37 pm1.001 NW West Ridge - ChicaCookA brief period of 1-inch diameter hail near Kedzie and Touhy. Time estimated from radar. (LOT)
3:32 pm1.754 SW PlainfieldKendallReports of golf ball size hail near Caton Farm Road and County Line Road. Relayed via amateur radio. Time estimated by radar. (LOT)
3:35 pm1.252 SW Crystal LawnsWillRelayed via mping. Time estimated by radar. (LOT)
3:35 pm2.252 N ShorewoodWillRelayed via mping. Time estimated by radar. (LOT)
3:38 pm1.254 W ShorewoodKendallRelayed via mping. (LOT)
3:41 pm3.002 WSW ShorewoodWillPhoto 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 pm1.501 S ShorewoodWill(LOT)
3:46 pm2.001 SE MinookaWillPublic 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.

RadarSignaturesRated 100%1 in or more2 in or moreLargest expectedFirstLast
KORD63681117102.50 in10:01 am11:08 pm
KMDW611140167172.50 in10:21 am11:08 pm
KDVN329145135544.00 in9:55 am11:09 pm
KMKX284122121444.00 in9:50 am11:07 pm
KILX254113108504.00 in10:36 am11:04 pm
KLOT23185102253.25 in9:50 am11:01 pm
KIWX220141129574.00 in10:52 am11:06 pm
KMKE202403432.25 in9:47 am8:49 pm
KGRR805244172.75 in9:51 am8:28 pm
KIND16111001.75 in1:10 pm6:18 pm
KGRB91201.50 in11:52 am8:30 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.