Oak Park, IL

Hail map for Oak Park, IL — July 27, 2026

NOAA radar detected hail up to 1.50″ — half dollar size — within 5 miles of Oak Park on July 27, 2026.

Hail swath map for Oak Park, IL on July 27, 2026 showing 1.50 inch hail.
Max hail size
1.50″
half dollar
Impact rating
5/10
from stone size
Size bands over the city
2
distinct radar bands
Reached the ground
50%
NOAA POSH probability
Measured on the ground
2.50″
12.1 mi away · Trained Spotter

NOAA's Probability of Severe Hail peaked at 50% over Oak Park that day — moderate: severe hail likely reached the ground somewhere nearby. It is a separate model from the size estimate above: one asks how big the stones were in the storm, the other asks whether they made it down.

Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

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Homeowners

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This page covers Oak Park as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.

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Other towns hit on July 27, 2026

Joliet, IL2.00″Naperville, IL2.00″Schaumburg, IL2.00″Bolingbrook, IL2.00″Appleton, WI2.00″Orland Park, IL2.00″Tinley Park, IL2.00″Oak Lawn, IL2.00″Hoffman Estates, IL2.00″Downers Grove, IL2.00″Bartlett, IL2.00″Streamwood, IL2.00″
Every Illinois city hit on July 27, 2026 →

Other hail dates for Oak Park

June 24, 20261.00″March 30, 20261.00″March 10, 20261.00″August 12, 20251.00″May 15, 20251.00″
Every storm over Oak Park →

What people on the ground measured in Oak Park, IL on July 27, 2026

27 reports filed with the National Weather Service — 1 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

  • 2.50″ hen egg size Trained Spotter
    1 WNW Westmont, IL · 12.1 mi away12:18 PM CDTDuPage County
  • 2.00″ hen egg size Public
    Oak Brook, IL · 9.3 mi away12:08 PM CDTDuPage County

    Photo shared on social media showing a hailstone roughly two inches in diameter.

  • 2.00″ hen egg size Public
    Clarendon Hills, IL · 11.2 mi away11:56 AM CDTDuPage County

    Trained spotter reported 2 inch diameter hail in Clarendon Hills. Time estimated by radar.

  • 2.00″ hen egg size Public
    1 NW Clarendon Hills, IL · 11.2 mi away12:04 PM CDTDuPage County

    Report from mPING: Hen Egg (2.00 in.).

  • 2.00″ hen egg size Public
    Downers Grove, IL · 12.9 mi away12:05 PM CDTDuPage County

    Measured hailstone of 2 inches in diameter. Time estimated by radar.

  • 1.75″ golf ball size Public
    Hinsdale, IL · 9.5 mi away11:56 AM CDTDuPage County

    Public report of golf ball size hail in Hinsdale. Relayed via social media. Time estimated by radar.

  • 1.75″ golf ball size Public
    Oak Brook, IL · 9.6 mi away11:54 AM CDTDuPage County

    Public report of golf ball size hail in Oak Brook. Time estimated by radar.

  • 1.75″ golf ball size Public
    1 ENE Willowbrook, IL · 10.1 mi away12:20 PM CDTCook County

    Golf ball size hail near 63rd Street and County Line Road. Relayed via amateur radio. Time estimated by radar.

  • 1.75″ golf ball size Public
    1 NW Westmont, IL · 12.1 mi away11:59 AM CDTDuPage County

    Public report of golf ball size hail in northeastern Downers Grove. Hail fell for 15 minute period. Time estimated by radar.

  • 1.75″ golf ball size Public
    Downers Grove, IL · 13.4 mi away12:15 PM CDTDuPage County

    Photo shared on social media of golf ball size hail.

  • 1.50″ half dollar size Public
    1 E La Grange Park, IL · 5.4 mi away12:01 PM CDTCook County

    Relayed via mping.

  • 1.50″ half dollar size Public
    1 N Oakbrook Terrace, IL · 9.7 mi away11:54 AM CDTDuPage County

    Public report of ping pong ball size hail at Oakbrook Terrace. Time estimated by radar.

  • 1.50″ half dollar size Public
    1 NE Downers Grove, IL · 12.3 mi away12:00 PM CDTDuPage County

    Relayed via mping.

  • 1.50″ half dollar size Public
    1 E Greater Grand Cross, IL · 12.5 mi away1:17 PM CDTCook County

    Relayed via mping. Time estimated by radar.

  • 1.50″ half dollar size Public
    1 E Glendale Heights, IL · 14.3 mi away12:11 PM CDTDuPage County

    Relayed via mping.

  • 1.25″ half dollar size Public
    1 NW Countryside, IL · 8.5 mi away12:02 PM CDTCook County

    Public report of hail up to half dollar size near 55th Street and Willow Springs Road. Most hail stones nickel size.

  • 1.25″ half dollar size Public
    1 W Northerly Island, IL · 8.7 mi away1:00 PM CDTCook County

    Relayed via mping.

  • 1.25″ half dollar size Public
    1 NNE Indian Head Park, IL · 9.1 mi away12:03 PM CDTCook County

    Photo shared on social media of quarter to half dollar size hail in La Grange Highlands.

  • 1.25″ half dollar size Public
    1 WSW Willowbrook, IL · 12.0 mi away11:54 AM CDTDuPage County

    Photo shared to social media shows half dollar size hail near 67th Street and Clarendon Hills Road. Time estimated by radar.

  • 1.00″ quarter size Public
    Elmhurst, IL · 8.1 mi away12:09 PM CDTDuPage County

    Relayed via mping. Time estimated by radar.

  • 1.00″ quarter size Public
    1 NW West Ridge - Chica, IL · 9.4 mi away1:37 PM CDTCook County

    A brief period of 1-inch diameter hail near Kedzie and Touhy. Time estimated from radar.

  • 1.00″ quarter size Public
    1 NW Villa Park, IL · 10.6 mi away11:56 AM CDTDuPage County

    Public report of nickel to quarter size hail in Villa Park. Some melting occurred prior to measurement. Time estimated by radar.

  • 1.00″ quarter size Public
    1 NW Oak Lawn, IL · 11.4 mi away12:50 PM CDTCook County

    Relayed via mping. Time estimated by radar.

  • 1.00″ quarter size Public
    1 SW York Center, IL · 12.0 mi away11:52 AM CDTDuPage County

    Relayed via mping.

  • 1.00″ quarter size Public
    1 SW Evergreen Park, IL · 12.5 mi away12:51 PM CDTCook County

    Relayed via mping. Time estimated by radar.

  • 1.00″ quarter size Public
    Darien, IL · 13.4 mi away12:26 PM CDTDuPage County

    Relayed via mping. Time estimated by radar.

  • 1.00″ quarter size Public
    3 W York Center, IL · 13.5 mi away11:47 AM CDTDuPage County

    Relayed via mping. Time estimated by radar.

Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.

FAQ

Oak Park hail on July 27, 2026

NOAA radar estimated stones up to 1.50 inches — half dollar size — within about 5 miles of Oak Park that day, across 2 distinct size bands. Sizes vary street to street inside a single swath.

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