...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT TUESDAY...
Expires: June 30, 2026 @ 9:00pm
WHAT
Dangerously hot and humid conditions with multiple days of heat index values of 105 to 110 expected, along with nighttime lows not dropping below 75 degrees.
WHERE
Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri.
WHEN
From 1 PM this afternoon to 9 PM CDT Tuesday.
IMPACTS
Heat related illnesses increase significantly during extreme heat and high humidity events.
PRECAUTIONARY/PREPAREDNESS ACTIONS
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.