Active AlertsFort Madison, IA

What: Dangerously hot and humid conditions with multiple days of heat index values of 100 to 110 expected, along with nighttime lows not falling below the mid to upper 70s.
Where: Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri.
When: Until 10 PM CDT Thursday.
Impacts: Heat related illnesses increase significantly during extreme heat and high humidity events.

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.