Illinois, Missouri Heat Advisory - Moderate | Effective 06/08/2026 09:44
* WHAT...Heat index values up to 108 expected.
* WHERE...Portions of southwest Illinois and central, east central,
and southeast Missouri.
* WHEN...From noon to 10 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time