Active Weather Alerts
Heat Advisory
Issued: 3:53 PM Sep. 17, 2026 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ SUNDAY... * WHAT...Heat index values up to 103-109 degrees can be expected. * WHERE...all of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 7 PM CDT /8 PM EDT/ Sunday. * IMPACTS...Record to near record hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The Heat Advisory has been extended thru Sunday for the entire Quad State Region. Although heat index values will only be near 100, the prolonged period of late season hot temperatures and high humidity will continue to elevate heat-related health impacts. 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. &&
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