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Elev 251 ft, 42.34 °N, 88.27 °W

McHenry, IL Severe Weather Alertstar_ratehome

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Location: McHenry, IL
Elevation: 251ft
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Active Weather Alerts

Severe Thunderstorm Warning
Issued: 10:39 PM Jun. 11, 2026 – National Weather Service
The National Weather Service in Chicago has issued a

* Severe Thunderstorm Warning for...
Eastern Ogle County in north central Illinois...
Northern De Kalb County in north central Illinois...
Winnebago County in north central Illinois...
McHenry County in northeastern Illinois...
Boone County in north central Illinois...

* Until 630 PM CDT.

* At 538 PM CDT, severe thunderstorms were located along a line
extending from near Sharon to near Poplar Grove to near Oregon,
moving east-northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
Rockford, Beloit, McHenry, Belvidere, Woodstock, Loves Park,
Machesney Park, Roscoe, Rochelle, Harvard, South Beloit, Rockton,
Marengo, Poplar Grove, Genoa, Byron, Oregon, Rockford Airport,
Spring Grove, Candlewick Lake, Wonder Lake, Cherry Valley,
Winnebago, Davis Junction, and Richmond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

A Tornado Watch remains in effect until 900 PM CDT for north central
and northeastern Illinois.

&&


HAIL THREAT...RADAR INDICATED;
MAX HAIL SIZE...<.75 IN;
WIND THREAT...RADAR INDICATED;
MAX WIND GUST...60 MPH

Tornado Watch
Issued: 7:03 PM Jun. 11, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 313 IN
EFFECT UNTIL 9 PM CDT /10 PM EDT/ THIS EVENING FOR THE FOLLOWING
AREAS

IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN EAST CENTRAL ILLINOIS

FORD                  IROQUOIS

IN NORTH CENTRAL ILLINOIS

BOONE                 DE KALB               LA SALLE
LEE                   OGLE                  WINNEBAGO

IN NORTHEAST ILLINOIS

COOK                  DUPAGE                GRUNDY
KANE                  KANKAKEE              KENDALL
LAKE IL               MCHENRY               WILL

IN INDIANA THIS WATCH INCLUDES 5 COUNTIES

IN NORTHWEST INDIANA

BENTON                JASPER                LAKE IN
NEWTON                PORTER

THIS INCLUDES THE CITIES OF ALGONQUIN, AURORA, BELVIDERE,
BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, BYRON, CAROL STREAM,
CHESTERTON, CHICAGO, COAL CITY, CRYSTAL LAKE, DEKALB, DEMOTTE,
DIXON, DOWNERS GROVE, DWIGHT, ELGIN, EVANSTON, FAIRBURY, FOWLER,
GARY, GIBSON CITY, GILMAN, GURNEE, HAMMOND, JOLIET, KANKAKEE,
KENTLAND, LA SALLE, LEMONT, LOMBARD, MARSEILLES, MCHENRY,
MENDOTA, MERRILLVILLE, MINOOKA, MOROCCO, MORRIS, MUNDELEIN,
NAPERVILLE, OAK LAWN, OREGON, ORLAND PARK, OSWEGO, OTTAWA,
OXFORD, PARK FOREST, PAXTON, PLANO, PONTIAC, PORTAGE, RENSSELAER,
ROCHELLE, ROCKFORD, ROSELAWN, SCHAUMBURG, STREATOR, SYCAMORE,
VALPARAISO, WATSEKA, WAUKEGAN, WHEATON, WILMINGTON, WOODSTOCK,
AND YORKVILLE.

Flood Watch
Issued: 5:39 PM Jun. 11, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT UNTIL 11 PM CDT THIS EVENING...

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of Illinois, including the following areas,
Boone, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane,
Kankakee, Kendall, La Salle, Lake IL, Lee, Livingston, McHenry,
Northern Cook, Northern Will, Ogle, Southern Cook, Southern Will
and Winnebago and northwest Indiana, including the following
areas, Lake IN and Porter.

* WHEN...Until 11 PM CDT this evening.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Underpasses may be
flooded. Roads and streets may be flooded.

* ADDITIONAL DETAILS...
- Multiple rounds of heavy showers and thunderstorms are
possible this afternoon and evening, with rain rates up to 1
to 3 inches per hour. The most likely areas for flooding
include urban areas and locations and received heavy rainfall
over the last few days.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Watch for flash flooding means rapid-onset flooding is
possible, but not yet certain, based upon the latest forecasts.
Flash flooding is a dangerous situation. Persons with interests
along area rivers, creeks, and other waterways should monitor the
latest forecasts and be prepared to take action should flooding
develop.

&&

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