Tornado and Flooding in Illinois, June 24, 2026

Name: Tornado and Flooding in Illinois, June 24, 2026
Start: 2026-06-24T16:34
End: 2026-06-24T21:30
Location: Illinois

June 24, 2026 · NWS LOT · 41 events in 9 counties and zones

Scattered thunderstorms produced localized wind damage, localized flooding and one brief tornado during the afternoon and evening of June 24th.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 41

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS LOT wrote it up.

Scattered thunderstorms produced localized wind damage, localized flooding and one brief tornado during the afternoon and evening of June 24th.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before the first event at Jun 24, 12:46 PM CST, 3 hours 48 minutes earlier. Its key messages:

Scattered thunderstorms expected this afternoon and evening, a few may be severe with large hail and damaging winds.
Another chance of showers and possibly a few thunderstorms during the day Friday, with another chance of showers and thunderstorms Saturday night perhaps into early Sunday morning.
First heat wave of the summer expected early next week with the potential for highs in the 90s and peak afternoon heat indices over 100 degrees.

Area forecast discussion, Jun 24, 12:46 PM CST, 3 hours 48 minutes before

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
146 PM CDT Wed Jun 24 2026

.KEY MESSAGES...

- Scattered thunderstorms expected this afternoon and evening,
  a few may be severe with large hail and damaging winds.

- Another chance of showers and possibly a few thunderstorms
  during the day Friday, with another chance of showers and
  thunderstorms Saturday night perhaps into early Sunday
  morning.

- First heat wave of the summer expected early next week with
  the potential for highs in the 90s and peak afternoon heat
  indices over 100 degrees.

&&

.DISCUSSION...
Issued at 146 PM CDT Wed Jun 24 2026

Shortwave trough over the western Great Lakes along with
associated weak sfc front from northwest Wisconsin south into
eastern Iowa should encourage scattered thunderstorm development
this afternoon. These storms should move southeastward across
our CWA late this afternoon into this evening. Jet streak is
evident on water vapor imagery nosing into SE MN/SW WI early
this afternoon. Guidance depicts a 40-50kt 500mb speed max
spreading across southern WI and northern IL this afternoon
and evening. This will result in a increase in deep layer shear
into the 40kt range.

Rain associated with lead shortwave should continue to exit the
area early this afternoon with at least partial clear already
spreading into our far western CWA. This should allow for
moderate instability to develop across the area with MLCAPES of
1000-1500 J/kg. The moderate instability coupled with fairly
strong deep layer shear should support supercells with a
potential for large hail and perhaps damaging winds. Weak mid
level lapse rates may limit the magnitude of the hail/wind
threat, but the long straight hodographs would support splitting
supercells and a hail threat.

This front should clear the CWA late this evening bringing an
end to the showers/storms by late evening. In the wake of the
front, looks for dry weather Thursday and most of Thursday
night. There is a signal in most guidance for another low
amplitude shortwave to potentially becoming convectively
enhanced before moving toward the mid Mississippi Valley Friday.
Instability should be pushed well south of our CWA, so if this
MCV takes a more northerly track it would likely be in a
weakening state as it encounters more stable and drier low level
air mass over our area Friday. Conversely, it is possible that
the MCV may tend to propagate more southward toward the
instability gradient. In collaboration with neighboring offices,
lowered NBM pops for Friday some and kept slight thunder
chances confined to areas south of the Kankakee/Illinois Rivers.
Cloud cover should keep temps cooler Friday, but if it does
rain then highs would need to be lowered even more, especially
southern CWA where better rain chances should be.

Over the weekend, an upper level ridge is progged to begin
developing over the middle and lower Mississippi Valley region.
A warm front is progged to lift northward Saturday night into
Sunday. Some threat of showers and thunderstorms will exist
ahead of this front and ahead of the EML advecting eastward with
the developing upper ridge. Medium range guidance is in good
agreement in developing a fairly strong (595-596dm) 500mb ridge
over the Mississippi Valley early next week.

Sunday, there's likely a small chance of showers/storms in the
morning, then probably dry in the afternoon. With the warm front
moving through the area, a weak lake breeze is possible along
the IL shore perhaps offering a bit cooler conditions right
along the lake. Elsewhere, highs should climb into the upper 80s
to around 90 with higher dewpoints likely pushing afternoon heat
indices well into the 90s to near 100.

Monday through Wednesday, current forecast has highs in the low
to mid 90s with dewpoints in the 70s resulting in heat indices
solidly over 100 degrees. Based on the current model guidance,
these values are reasonable, but with the heart of the upper
ridge progged to be centered south toward the lower Ohio and
mid-lower Mississippi Valley it is possible that ring of fire
convection currently progged to be mostly to our north could
sneak farther south or send outflow south into parts of our area
offering some reprieve from the heat. Harder to forecast that
this far out, but something to watch as a possible spoiler to
what otherwise looks like the first formidable heat wave of the
summer.

- Izzi

&&

.AVIATION /18Z TAFS THROUGH 00Z FRIDAY/...
Issued at 1249 PM CDT Wed Jun 24 2026

Forecast concerns include...

Scattered thunderstorms this afternoon into this evening.
Wind directions through this evening.
Northeast wind shift/lake breeze Thursday evening.

An area of showers will move across the Chicago terminals over
the next few hours with brief mvfr vis/cigs and possibly begin
to dissipate. Scattered thunderstorms are developing across
southwest WI and this activity is expected to increase in
coverage as it moves southeast across the terminals during the
mid to late afternoon. There may be a second round of showers
and scattered thunderstorms during the mid/late evening and
while confidence is low, opted to include prob thunder mention
for this potential, which may be dependent on how the first
round of storms evolves. Isolated showers may linger into the
overnight hours.

There are various boundaries from the current showers and
earlier showers this morning that make prevailing wind
directions challenging. A general west/northwest direction is
expected for the next few hours and then a turn back to the
southwest is expected later this afternoon. Winds may turn to
the southeast or easterly behind the first round of storms, then
possibly become light and variable during the mid evening.
Prevailing light westerly winds are expected overnight, turning
more west/northwest Thursday with speeds to 10kt. A lake breeze
is expected to develop Thursday afternoon and move inland with
winds turning northeast at the Chicago terminals early Thursday
evening. There is also a low chance for a few showers to develop
along the lake breeze Thursday afternoon. cms

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...None.

&&

Visit us at weather.gov/chicago

Hazardous weather outlook, Jun 24, 1:17 PM CST, 3 hours 17 minutes before

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
217 PM CDT Wed Jun 24 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-251930-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
217 PM CDT Wed Jun 24 2026 /317 PM EDT Wed Jun 24 2026/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Level 2 of 5 Damaging Wind Risk...up to 60 mph.
     Level 2 of 5 Large Hail Risk...up to ping pong ball size.

DISCUSSION...

Scattered thunderstorms are expected this afternoon and evening.
A couple of the storms could become severe with large hail and
damaging winds the primary threat.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Friday...
  Limited Thunderstorm Risk south of I-80.
Saturday night and Sunday morning...
  Limited Thunderstorm Risk.
Monday...
  Elevated Excessive Heat Risk.
Tuesday...
  Limited Thunderstorm Risk.
  Elevated Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

  Spotters may be needed through this evening.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the southeast 30 mph, isolated storms may move
  northeast up to 40 mph.

LMZ740>745-251930-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
217 PM CDT Wed Jun 24 2026

This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.

.DAY ONE...Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Level 2 of 5 Thunderstorm Wind Gust Risk...up to 50 knots.
     Level 2 of 5 Hail Risk...up to ping pong ball size.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Saturday night into Sunday morning...
  Limited Thunderstorm Risk.
Tuesday...
  Limited Thunderstorm Risk.

- Izzi

Visit us at www.weather.gov/chicago

In the hours before

Local storm report, Jun 24, 12:07 PM CST, 4 hours 27 minutes before

Preliminary Local Storm Report
National Weather Service Chicago IL
107 PM CDT Wed Jun 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0435 PM     Flash Flood      1 N Park Forest         41.50N 87.68W
06/17/2026                   Cook               IL   Law Enforcement

            Park Forest Police Department indicates
            Orchard Drive closed due to flooding at
            underpass near North Street. Relayed via
            social media.

&&

WSL

Local storm report, Jun 24, 12:12 PM CST, 4 hours 22 minutes before

Preliminary Local Storm Report
National Weather Service Chicago IL
112 PM CDT Wed Jun 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     Non-Tstm Wnd Dmg 2 NNW Carol Stream      41.94N 88.15W
06/17/2026                   DuPage             IL   Public

            Photo shared to social media shows multiple
            branches downed, one tree uprooted, near
            Army Trail Road and County Farm Road. Damage
            due to wake low. Time estimated from nearby
            weather stations.

&&

WSL

Local storm report, Jun 24, 12:13 PM CST, 4 hours 21 minutes before

Preliminary Local Storm Report
National Weather Service Chicago IL
113 PM CDT Wed Jun 24 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     Non-Tstm Wnd Dmg 1 NNW Downers Grove     41.80N 88.02W
06/17/2026                   DuPage             IL   NWS Employee

            Widely scattered branches downed across
            northern Downers Grove. Damage due to wake
            low. Time estimated from nearby weather
            stations.

&&

WSL

The radar

The Chicago radar (KLOT), 70 km away, was scanning. The volume nearest the first event began at 22:36 UTC.

Open the radar archive at this moment

Event by event

20 thunderstorm wind, 10 flood, 9 hail, 1 tornado, 1 heavy rain. Local standard time, as filed.

Tornado, McHenry

When: June 24, 4:34 PM CST to 4:35 PM CST
Where: McHenry County, 2.15 mi E of Harmony to 2.45 mi E of Harmony
Rating: EF0
Path length: 0.34 mi
Path width: 10 yd
Reported by: Emergency Manager
Coordinates: 42.163, -88.488

A brief tornado with estimated peak winds of 75 mph touched down in a field north of Harmony Road, approximately a half mile east of Seeman Road. The tornado moved southeast causing damage to the roof of a barn and downing some tree limbs. A few metal panels from the roof of a barn were scattered approximately 200 to 300 yards away. A utility pole was damaged. The tornado ended southwest of the intersection of Harmony Road and Briar Hill Road. A video showed this brief tornado with no clear condensation funnel but swirling debris being lofted.

Hail, McHenry

When: June 24, 4:39 PM CST to 4:40 PM CST
Where: McHenry County, 0.9 mi NE of Huntley
Measured: 1 in hail
Reported by: Public
Coordinates: 42.181, -88.409

Hail, McHenry

When: June 24, 4:41 PM CST to 4:42 PM CST
Where: McHenry County, 1.69 mi ENE of Huntley
Measured: 1.5 in hail
Reported by: Public
Coordinates: 42.180, -88.390

Hail, Ogle

When: June 24, 4:42 PM CST to 4:43 PM CST
Where: Ogle County, 1.92 mi NE of Byron
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 42.152, -89.227

Hail, McHenry

When: June 24, 4:54 PM CST to 4:55 PM CST
Where: McHenry County, Algonquin
Measured: 1 in hail
Reported by: Public
Coordinates: 42.170, -88.290

Multiple reports of quarter size hail were received from Algonquin.

Hail, Kane

When: June 24, 4:55 PM CST to 4:56 PM CST
Where: Kane County, 1.54 mi W of Algonquin
Measured: 1 in hail
Reported by: Public
Coordinates: 42.150, -88.320

Hail, Kane

When: June 24, 4:55 PM CST to 4:56 PM CST
Where: Kane County, 0.52 mi W of Algonquin
Measured: 1 in hail
Reported by: Public
Coordinates: 42.151, -88.300

Hail, McHenry

When: June 24, 4:56 PM CST to 4:57 PM CST
Where: McHenry County, 1.33 mi SSW of Lake in the Hills
Measured: 1 in hail
Reported by: Emergency Manager
Coordinates: 42.161, -88.336

Quarter size hail was reported near Randall Road and Harnish Drive.

Hail, Kane

When: June 24, 4:59 PM CST to 5:00 PM CST
Where: Kane County, 1.02 mi E of Algonquin
Measured: 1 in hail
Reported by: Public
Coordinates: 42.150, -88.270

Thunderstorm Wind, Kane

When: June 24, 5:12 PM CST
Where: Kane County, 1.03 mi W of Sleepy Hollow
Measured: 50 kt (58 mph) estimated gust
Reported by: Social Media
Coordinates: 42.090, -88.320

A photo showed a large tree limb blown down.

Thunderstorm Wind, Kane

When: June 24, 5:13 PM CST
Where: Kane County, 0.08 mi N of West Dundee
Measured: 60 kt (69 mph) estimated gust
Reported by: Emergency Manager
Coordinates: 42.101, -88.280

Large tree limbs were blown down near Barrington Avenue and Water Street. Barrington Avenue was blocked by fallen tree limbs, power lines and a broken utility pole.

Thunderstorm Wind, Kane

When: June 24, 5:16 PM CST
Where: Kane County, 2.04 mi N of Elgin
Measured: 60 kt (69 mph) estimated gust
Reported by: Local Official
Coordinates: 42.069, -88.272

In the Voyageur Landing Forest Preserve, multiple large tree limbs were broken and at least one tree was snapped at its base. A roadway was blocked due to tree debris.

Thunderstorm Wind, Kane

When: June 24, 5:16 PM CST to 5:17 PM CST
Where: Kane County, Elgin
Measured: 65 kt (75 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 42.040, -88.280

Large trees were blown down, some of the trees were snapped. Tree limbs and power lines were also blown down.

Thunderstorm Wind, Kane

When: June 24, 5:17 PM CST
Where: Kane County, 1.78 mi NE of Elgin
Measured: 65 kt (75 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 42.060, -88.258

A photo showed a large tree that was blown down and crushed a pickup truck between Ford Avenue and Elma Avenue.

Thunderstorm Wind, Cook

When: June 24, 5:18 PM CST
Where: Cook County, 0.69 mi N of Elgin
Measured: 55 kt (63 mph) estimated gust
Reported by: Public
Coordinates: 42.040, -88.260

Tree limbs were blown down in Lords Park.

Hail, De Kalb

When: June 24, 5:26 PM CST to 5:27 PM CST
Where: De Kalb County, 2.96 mi NNE of Malta
Measured: 1 in hail
Reported by: Social Media
Coordinates: 41.972, -88.858

A photo showed multiple hail stones of nickel size with one stone of quarter size near Rich Road and Schafer Road.

Thunderstorm Wind, Cook

When: June 24, 5:27 PM CST to 5:29 PM CST
Where: Cook County, 0.83 mi W of Streamwood to 0.4 mi SSW of Streamwood
Measured: 70 kt (81 mph) estimated gust
Reported by: Social Media
Coordinates: 42.028, -88.186

Multiple photos and videos showed trees blown down, some uprooted, others snapped across the Streamwood area. At least one tree fell on a home causing a partial roof collapse. Numerous other large tree limbs and power lines were also blown down.

Thunderstorm Wind, Cook

When: June 24, 5:29 PM CST to 5:31 PM CST
Where: Cook County, 0.8 mi W of Bartlett to 0.38 mi SSE of Bartlett
Measured: 70 kt (81 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 41.998, -88.195

Trees, tree limbs and power lines were blown down in Bartlett with at least one tree that fell on a garage. A photo showed numerous large tree limbs blown down at the Bartlett Hills Golf Course with one large tree snapped at its base. A large oak tree estimated to be 250 years old was blown down near North Avenue and Eastern Avenue.

Thunderstorm Wind, La Salle

When: June 24, 5:30 PM CST
Where: La Salle County, 2.11 mi W of North Utica
Measured: 55 kt (63 mph) estimated gust
Reported by: Public
Coordinates: 41.342, -89.050

The power grid, including poles, lighting and electronic infrastructure was damaged at the LaSalle Speedway.

Thunderstorm Wind, La Salle

When: June 24, 5:32 PM CST
Where: La Salle County, 1.4 mi WNW of North Utica
Measured: 55 kt (63 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 41.348, -89.035

A tree was blown down on Oak Ridge Drive and a street lamp was hanging.

Thunderstorm Wind, La Salle

When: June 24, 5:34 PM CST
Where: La Salle County, 0.16 mi E of North Utica
Measured: 55 kt (63 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 41.340, -89.007

A tree fell onto power lines on East Canal Street.

Thunderstorm Wind, La Salle

When: June 24, 5:35 PM CST
Where: La Salle County, 0.81 mi NE of Matthiessen State Park
Measured: 55 kt (63 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 41.309, -89.010

Multiple utility poles were blown down near Route 178 and Route 71.

Thunderstorm Wind, Cook

When: June 24, 5:38 PM CST
Where: Cook County, 0.23 mi S of Hanover Park
Measured: 55 kt (63 mph) estimated gust
Reported by: Public
Coordinates: 41.997, -88.140

A large tree limb was snapped and fell onto multiple parked vehicles. Other tree limbs were blown down nearby.

Thunderstorm Wind, Du Page

When: June 24, 5:39 PM CST to 5:40 PM CST
Where: Du Page County, 1.11 mi SSW of Hanover Park
Measured: 50 kt (58 mph) measured gust
Reported by: Public
Coordinates: 41.976, -88.150

Tree limbs, fence posts and fence panels were blown down. A six inch diameter tree limb was blown down on Ring Court. A nearby personal weather station measured a wind gust to 58 mph.

Flood, Kane

When: June 24, 5:40 PM CST to 6:30 PM CST
Where: Kane County, 0.43 mi WSW of Elgin to 0.48 mi WSW of Elgin
Cause: Heavy Rain
Reported by: Social Media
Coordinates: 42.038, -88.288

Video showed a few inches of standing water along State Street in downtown Elgin.

Thunderstorm Wind, Du Page

When: June 24, 5:45 PM CST
Where: Du Page County, 1.05 mi NNE of Cloverdale
Measured: 50 kt (58 mph) estimated gust
Reported by: Law Enforcement
Coordinates: 41.953, -88.110

Tree limbs were blown down onto Schick Road near Springfield Drive.

Flood, Cook

When: June 24, 5:45 PM CST to 9:30 PM CST
Where: Cook County, 1.29 mi W of Streamwood to 1.96 mi NNE of Hanover Park
Cause: Heavy Rain
Reported by: Public
Coordinates: 42.027, -88.195

Multiple reports of street flooding were received from Hanover Park and the south side of Streamwood.

Flood, Du Page

When: June 24, 6:00 PM CST to 7:30 PM CST
Where: Du Page County, 0.32 mi N of Bloomingdale to 0.26 mi N of Bloomingdale
Cause: Heavy Rain
Reported by: Law Enforcement
Coordinates: 41.955, -88.081

Roadway flooding was reported along Schick Road east of Bloomingdale Road.

Flood, Du Page

When: June 24, 6:10 PM CST to 7:30 PM CST
Where: Du Page County, 0.39 mi WNW of Addison to 0.4 mi WSW of Addison
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.931, -87.997

A photo showed several inches of standing water on a residential street in Addison.

Flood, Cook

When: June 24, 6:25 PM CST to 7:30 PM CST
Where: Cook County, 0.14 mi W of River Grove to 0.15 mi WSW of River Grove
Cause: Heavy Rain
Reported by: Social Media
Coordinates: 41.930, -87.843

Video showed a few inches of standing water on Grand Avenue near Forest Avenue.

Thunderstorm Wind, Cook

When: June 24, 6:26 PM CST to 6:27 PM CST
Where: Cook County, 0.57 mi NNW of Uptown
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 41.977, -87.656

Multiple tree limbs were blown down in Edgewater and Uptown.

Thunderstorm Wind, Cook

When: June 24, 6:35 PM CST
Where: Cook County, 0.61 mi SE of Evergreen Park
Measured: 60 kt (69 mph) estimated gust
Reported by: Social Media
Coordinates: 41.714, -87.692

Photos showed multiple tree limbs blown down and one tree snapped at its base near 99th Street and California Avenue.

Thunderstorm Wind, Cook

When: June 24, 6:41 PM CST to 6:42 PM CST
Where: Cook County, 0.98 mi WSW of Washington Heights
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 41.717, -87.659

Numerous tree limbs were blown down in Beverly and Washington Heights.

Thunderstorm Wind, Cook

When: June 24, 6:43 PM CST to 6:44 PM CST
Where: Cook County, 0.66 mi W of Morgan Park
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 41.689, -87.683

Numerous tree limbs were blown down in Mt. Greenwood and Morgan Park.

Thunderstorm Wind, Cook

When: June 24, 6:45 PM CST to 6:46 PM CST
Where: Cook County, 0.52 mi W of West Roseland
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 41.690, -87.640

Scattered tree limbs were blown down in Roseland, North Pullman and West Pullman.

Flood, Du Page

When: June 24, 6:45 PM CST to 9:00 PM CST
Where: Du Page County, 0.23 mi WSW of Naperville to 3.04 mi S of Naperville
Cause: Heavy Rain
Reported by: Trained Spotter
Coordinates: 41.769, -88.154

Street flooding was reported in and near Naperville. Around one foot of standing water was reported covering a portion of Riverlea Circle. One to two feet of standing water was reported on Gartner Road and Charles Street. Six inches of standing water was reported on Washington Street between 75th Street and 87th Street.

Flood, Cook

When: June 24, 7:00 PM CST to 9:00 PM CST
Where: Cook County, 0.79 mi NW of Crestwood to 0.76 mi WSW of Crestwood
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.667, -87.762

Multiple reports of street flooding were received from near Crestwood.

Flood, Cook

When: June 24, 7:00 PM CST to 9:00 PM CST
Where: Cook County, 0.63 mi NE of Roseland to 0.48 mi E of Roseland
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.716, -87.611

Multiple reports of flooding along Interstate 94 near Cottage Grove Avenue were received.

Flood, Cook

When: June 24, 7:00 PM CST to 9:00 PM CST
Where: Cook County, 1.52 mi SW of South Deering to 1.67 mi NNE of Dolton
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.664, -87.591

Multiple reports of flooding along Interstate 94 near 130th Street were received.

Flood, Will

When: June 24, 7:00 PM CST to 9:00 PM CST
Where: Will County, 0.86 mi NW of Bolingbrook to 1.95 mi SSW of Bolingbrook
Cause: Heavy Rain
Reported by: Public
Coordinates: 41.708, -88.083

Multiple roadway flooding reports were received from Bolingbrook and Lemont.

Heavy Rain, Grundy

When: June 24, 7:05 PM CST to 7:20 PM CST
Where: Grundy County, 2.77 mi N of Carbon Hill
Reported by: COOP Observer
Coordinates: 41.340, -88.298

Rainfall of 1.13 inches was measured in 15 minutes.

What these are

Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
Heavy Rain: Rainfall totals unusual for the place and season that did not produce a flood.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Illinois in 2026 Every state in 2026 This day in weather history The tornado archive for Illinois, 2026 Warnings in Illinois, June 2026

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1345200, 1345655, 1345656, 1345657, 1345658, 1345659, 1345660, 1345661, 1345662, 1345663, 1345664, 1345665, 1345666, 1345667, 1345668, 1345669, 1345671, 1345675, 1346820, 1346821, 1346823, 1346822, 1345684, 1345685, 1346839, 1345692, 1346836, 1346828, 1346830, 1346842, 1346827, 1345698, 1346825, 1346826, 1346824, 1346844, 1346843, 1349422, 1349424, 1349425, and more.