…EXTREME HEAT WATCH IS CANCELLED…
Issued: 1226 PM CDT Sun Jul 26 2026
…EXTREME HEAT WARNING NOW IN EFFECT UNTIL 10 PM CDT MONDAY…
WHAT
WHAT
A dangerous combination of oppressively humid and hot conditions with heat index values between 103 to 115 expected, with the highest values on Monday.
WHERE
Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri.
WHEN
Until 10 PM CDT Monday.
IMPACTS
Heat related illnesses increase significantly during extreme heat and high humidity events.
ADDITIONAL DETAILS
Little relief will occur tonight with low temperatures in the mid to upper 70s.
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.
